computer system servicing ncii - znnhs
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Computer System
Servicing NCII QUARTER 1-MODULE 1:
Install and Configure Computer Systems
Computer System Servicing – Grade 11 Alternative Delivery Mode Quarter 1– Module 1 First Edition, 2020
Senior High School
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Development Team of the Module
Writer: Manny P. Daleon Content Editor: Cherry Q. Sadicon; Fe L. Dalugdug; Shiela T. Arellano Language Editor: Cleo C. Canonce Proof-reader: Marsha Liza L. Ragot Illustrator: Joanne A. Comahig Lay-out Artist: Norman D. Balino
Management Team: Chairperson: Dr. Arturo B. Bayocot, CESO III
Regional Director
Co-Chairperson: Dr. Victor G. De Gracia Jr. CESO V Asst. Regional Jonathan S. dela Peña, PhD, CESO V Schools Division Superintendent
Rowena H. Para-on, PhD Assistant Schools Division Superintendent Mala Epra B. Magnaong, Chief ES, CLMD
Members: Neil A. Improgo, PhD, EPS-LRMS;
Bienvenido U. Tagolimot, Jr., PhD, EPS-ADM; Erlinda G. Dael, PhD, CID Chief; Norberto E. Rosales, EPS (TLE-TVL) In-charge; Celieto B. Magsayo, LRMS Manager; Loucile L. Paclar, Librarian II;
Printed in the Philippines by ______________________________________ Department of Education – Bureau of Learning Resources (DepEd-BLR) Office Address: Zone 1, Upper Balulang Cagayan de Oro City 9000 Telefax: (088) 880-7071, (088) 880-7072 E-mail Address: [email protected]
Department of Education • Republic of the Philippines
Senior High School
Computer System
Servicing NCII MODULE 1:
Install and Configure
Computer Systems
Department of Education • Republic of the Philippines
This instructional material was collaboratively developed and
reviewed by educators from public and private schools, colleges, and/or
universities.
We encourage teachers and other education stakeholders to email
their feedback, comments, and recommendations to the Department of
Education at [email protected]
We value your feedback and recommendations.
Table of Contents
What I Need To Know …………………………………….…….…… 1
General Instructions ………………………………………………… 1
Module Objectives ………………………………………………… 2
Module Content ………………………………………………… 2
What I Know ………………………………………………… 2
Quarter 1 Learning Outcome 1 Assemble computer hardware Self-Scheck 1 Task Sheet 1 Learning Outcome 2. Prepare Installer Self-Scheck 2 Task Sheet 2 Quarter 2 Learning Outcome 3. Install operating system and drivers for peripherals/ devices Self-Scheck 3 Task Sheet 3 Learning Outcome 4. Install application software Self-Scheck 4 Task Sheet 4 Learning Outcome 5. Conduct testing and documentation Self-Scheck 5 Task Sheet 5
Post-Test ………………………………………………… 70
Key to Answers ………………………………………………… 76
References ………………………………………………… 79
TO THE STUDENT
HOW TO USE THIS MODULE
The unit of competency, “Install and Configure Computer Systems“, is one of the
competencies of Computer Systems Servicing NCII, a course which comprises
knowledge, skills and attitudes required for a trainee to possess.
In this module, you are required to go through a series of learning activities in order
to complete each learning outcome. In each learning outcome are Information Sheets,
Self-Checks, Operation Sheets and Task/Job Sheets. Follow and perform the activities
on your own. If you have questions, do not hesitate to ask for assistance from your
teacher.
Remember to:
1. Work through all the information and complete the activities in each section. 2. Read information sheets and complete the self-check. Suggested references are
included to supplement the materials provided in this module. 3. Most probably, your trainer will also be your supervisor or manager. He is there to
support you and show you the correct way to do things. 4. You will be given plenty of opportunities to ask questions and practice on the job.
Make sure you practice your new skills during regular work shifts. This way, you will improve your speed, memory and your confidence.
Greetings!
This module contains training materials and activities for you to finish. You are
required to go through a series of learning activities. If you have questions, don’t
hesitate to ask your teacher for assistance.
This will give you the opportunity to develop your knowledge, hone your skills,
behavior and motivations required in Installing and Configuring Computer Systems
that is in line with the industry standards. You need to complete this module before
you can perform the next module.
1
Introduction
This module is designed to equip you the TVL Open High School Learners with
essential Knowledge, Skills, and Attitude in performing the tasks on Computer System
Servicing which will lead you to acquire National Certificate Level II.
This module includes information and activities to develop desirable values, skills
and understanding through step-by-step procedures and helpful techniques that will guide
you on how to install and configure computer systems. Furthermore, applications to real
life situations are also included for lifelong learning.
What to Learn in this Module?
At the end of the lesson, you’re expected to:
1. Assemble computer hardware. 2. Prepare installer. 3. Install operating system and driver for peripherals/devices. 4. Install application software. 5. Conduct test and documentation.
2
Pre-Test
What I Know?
1. What does BIOS stand for? a. Basic input output system b. Basic induct online system c. Basic industry online standards d. Basic insulator open source
2. CPU is the _____________ of the computer.
a. mother b. system c. brain d. process
3. What cable is used to connect PC to switch hub and router?
a. UTP cable b. straight thru cable c. cross over cable d. copper cable
4. Is the hardware in a computing device where the operating system (OS), application
programs and data in current use are kept so they can be quickly reached by the device's processor. a. RAM b. Operating system c. CPU d. HDD
5. What RAM stands for?
a. Random Access Memory b. Random Autonomous Memory c. Read Action Memory d. Rare Ally Memory
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6. Identify the malwares. a. trojan b. virus c. spyware d. all of the choices
7. An example of super computer is :
a. MP3 players b. Desktop c. Cell phones d. Mainframe computers
8. ROM is
a. random access memory - temporary b. random access memory - permanent c. read only memory - temporary d. read only memory – permanent
9. An example of a software :
a. USB b. Printer c. Excel d. Keyboard
10. USB stands for
a. Universal Serial Bus b. University Serial Bus c. Universal Serial Body d. Universal Series Bus
11. What is this?
a. Mouse b. Speakers c. Keyboard d. Monitor
12. What is this?
a. CPU b. Modem c. Internet d. Cable
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13. What is this? a. Malware b. Software c. Hardware d. People
14. OS stands for
a. Onsite Software b. Operating System c. Only Read Software d. On-demand System
15. What is this?
a. CPU b. Processor c. System Unit d, PC
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Definition of Terms
CPU-Central processing unit; the brain of the computer; controls the other elements of the computer
Disk Drive-A peripheral device that reads and/or writes information on a disk Hard Drive-A device (usually within the computer case) that reads and writes
information, including the operating system, program files, and data files Keyboard-A peripheral used to input data by pressing keys Modem-A peripheral device used to connect one computer to another over a phone
line Monitor-A device used to display information visually Mouse-A peripheral device used to point to items on a monitor Printer-A peripheral device that converts output from a computer into a printed image Browser-A program used to view World Wide Web pages, such as Netscape
Navigator or Internet Explorer Driver-Software program that controls a piece of hardware or a peripheral Icon-A small picture used to represent a file or program in a GUI interface Internet-A network of computer networks encompassing the World Wide Web, FTP,
telnet, and many other protocols URL-Uniform resource locator; the address of a site on the World Wide Web; a
standard way of locating objects on the Internet Virus-A deliberately harmful computer program designed to create annoying glitches or
destroy data Window-A screen in a software program that permits the user to view several programs
at one time
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What I Need To Know?
Lesson Information 1.1-1
OCCUPATIONAL HEALTH AND SAFETY POLICIES AND PROCEDURES
Learning Objectives:
After reading of this Information Sheet, you should be able to:
1. Identify the basic precautions and procedures in planning, preparing, installing and
testing of computer hardware and software.
2. Determine the effects of computers to the people, health risk, and to the environment.
During installation and initial test, careful planning and preparation are to be done.
To avoid personal injury and damages to wiring due to sharp pins on connectors and
printed circuit assemblies, rough chassis edges and corners, and hot components.
Adhere to warnings and limitations regarding accessibility into areas designated
only for authorized technical personnel.
SOME BASIC PRECAUTIONS AND PROCEDURES:
o Before starting the installation, read carefully the documentation and procedures
on any hardware and software settings that may be required.
o Failure to do the proper jumper setting may cause damage to your CPU.
o Without an effective cooling fan, the CPU can overheat and cause damage to both
CPU and the motherboard.
o Each bank must have the same size and type of memory installed in pairs.
o Before adding and removing any other system components, make sure that you
unplug your power supply. Failure to do so may cause damage to your
motherboard and in the system component.
Read Information Sheet No 1.1-1 and find out how much you can
remember. Do Self-Check 1.1-1 to know how much you have learned.
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o Test the computer, ensuring that it meets the necessary system requirements
before booting up.
o If the computer does not pass any of the power on self-test (POST), the computer
will receive an irregular power on self-test. An irregular POST is a beep code
which is different from the standard beep which can either be no beeps at all or a
combination of different beeps.
EFFECTS OF COMPUTERS
Some effects of computers relating to the violation of privacy, the impact on the
labor force, health risks, and the impact on the environment.
1. Violation of Privacy
Nearly every life event is stored in a computer somewhere--in medical records,
credit reports, tax records, etc. It is crucial that personal and confidential records be
protected properly. In many instances, where these records were not properly
protected, individuals have found their privacy violated and identities stolen.
2. Impact on Labor Force
Although computers have improved productivity in many ways and created an
entire industry with hundreds of thousands of new jobs, the skills of millions of workers
and managers have been replaced by computers. Thus, it is crucial that workers keep
their education up-to-date. A separate impact on the labor force is that some companies
are outsourcing jobs to foreign countries instead of keeping their homeland labor force
employed.
3. Health Risks
Prolonged or improper computer use can lead to injuries or disorders of the hands,
wrists, elbows, eyes, necks, and back. Computer users can protect themselves from
these health risks through proper workplace design, good posture while at the computer,
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and appropriately spaced work breaks. Another health risk, called computer addiction,
occurs when someone becomes obsessed with using the computer. Once recognized,
computer addiction is a treatable disorder.
4. Public Safety
Adults, teen, and children around the world are using computers to share publicly
their photos, videos, journals, music, and other personal information. Some of these
unsuspecting, innocent computer users have fallen victim to crimes committed by
dangerous strangers. Protect yourself and your dependents from these criminals by being
cautious. For example, do not share information that would allow others to identify or
locate you.
5. Impact on Environment
Computer manufacturing processes and computer waste are depleting natural
resources and polluting the environment. The amount of resources required to
manufacture a personal computer equals that of a mid-sized car. When computers are
discarded in landfills, they release toxic materials and potentially dangerous levels of
lead, mercury, and flame retardants. Strategies that can help protect the environment
include recycling, regulating manufacturing processes, extending the life of computers,
and immediately donating replaced computers.
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SELF-CHECK NO. 1.1-1
A. IDENTFICATION
Direction: Identify the Precautions and Procedures write TRUE if the statement
is correct and FALSE if the statement is wrong.
1. Failure to do the proper jumper setting may cause damage to your CPU.
2. After adding and removing any other system components, make sure that you unplug your power supply.
3. Test the computer, ensuring that it meets the necessary system requirements before booting up.
4. With an effective cooling fan, the CPU can overheat and cause damage to both CPU and the motherboard.
5. After starting the installation, read carefully the documentation and procedures on any hardware and software settings that may be required.
B. MATCHING TYPE Direction: Select your answer on the choices below that will correspond on the statement. Write the letter of your answer on the space provided.
A. Violation of Privacy B. Impact on the Environment C. Public Safety D. Health Risk E. Impact on Labor Force
1. Computer manufacturing processes and computer waste are depleting natural resources and polluting the environment.
2. Although computers have improved productivity in many ways and created an entire industry with hundreds of thousands of new jobs, the skills of millions of workers and managers have been replaced by computers.
3. It is crucial that personal and confidential records be protected properly. 4. Adults, teen, and children around the world are using computers to share
publicly their photos, videos, journals, music, and other personal information.
5. Prolonged or improper computer use can lead to injuries or disorders of the hands, wrists, elbows, eyes, necks, and back.
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What I Need To Know?
F. G. H.
Lesson Information 1.1-2
LEARNING OBJECTIVES:
After reading this Information Sheet, you should be able to:
1. Prepare the required documents or forms before you do a well-planned installation
2. Identify the qualifications to be a certified hardware professional so that you could be allowed and authorized to do a well-planned installation
REQUIRED DOCUMENTS/FORMS
A. Job Order- (sometimes job ticket or work ticket, as it often has some type of ticket
attached) is an order received by an organization from a customer or client, or an
order created internally within the organization. A work order may be for products or
services.
o the quantity of the product to be manufactured, built or fabricated
o the amount of raw material to be used, its price and amount
o the types of labor required, rate (per hour or per unit) and amount
o the machine utilization for each machine during the routing process, its rate
and amount
Read Information Sheet No 1.1-2 and find out how much you can
remember. Do Self-Check 1.1-2 to know how much you have learned.
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Sample Job Order Form
Computer Repair Job Order Form
Teacher Client’s Name School Alubijid NCHS Date July 27, 2020 Computer # 001 Service Tag# 001 Model Intel i3 Serial # 4737Z Computer Problem: (Brief Description of the Problem)
***Blue Screen Error***
For Technical Department Used Only Fax No. (02)922-5566 Computer Fixed By: Alexis V. Larosa Date Sent Back to School: ________________ Memory Transcend 2 GHz Processor Pentium Dual-Core 2 GHz Hard Drive Space Hitachi Sata 80 Gig Windows Windows 7 Ultimate
B. Request Form and Report Sheet
Computer Hardware Servicing maintenance, which includes planned installation,
main objective is to keep and improve production facilities, to keep and improve
production facilities stable and efficient at the lowest life cycle cost with the active
participation of all members in the company. A Request Form is used to put this
objective into action. And the Report Sheet and Request Form bring to life this
maintenance’s purposes which are:
o To increase productivity through maximum utilization and improvement of all
equipment
o To develop maintenance system to reduce life cycle cost of machinery and
equipment through the involvement of everybody in the organization
o To develop the operator’s capability to be competent in maintenance activities
through education, training and motivation.
o To enhance capability for advanced and sophisticated technology that would
reinforce competitive power.
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Sample Request Form
UNIT NO. 5-2
Description: Acer Aspire 4736Z Laptop Computer
Observation/s:
***Corrupted Operating System*** Date Reported:
January 1, 2020
Reported by:
Alexis V. Larosa
Activity: Reformat Laptop
Date Completed: July 27, 2020
Signed: ______________________
Sample Report Sheet
Repair Report Sheet
Area/Section: ANCHS Computer Laboratory
Facility Type
Nature of Breakdown
Recommendation
Laptop No Operating
System Error
Viral Corruption
Refer to the Technical
Department for
Reformatting of the
Operating System
Reported by: Marybel A. Guinitaran
Date: March 27, 2020
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REQUIRED QUALIFICATION FOR A COMPUTER HARDWARE PERSONNEL:
What Qualifications Do You Need to Become a PC Repair Technician?
Education Employers prefer applicants who have completed and pass the National
Certification Exam II (NC II) from any DepEd School, vocational training institute or similar
setting. Some employers require at least a high school diploma.
Certifications
Trainees can take the TESDA NC II Computer System Servicing assessment to
demonstrate their competency for entry-level jobs to employers. The Technical Education
and Skills Development Authority or TESDA offers a variety of certification programs. In
addition, technicians can achieve certifications even for trainer ship.
Physical and Personal Traits
PC technicians must be able to squat, bend and reach to access the computer
equipment requiring repair. They should be physically able to lift computer components.
Employers want technicians who think analytically, are organized and pay attention to
detail. They should feel comfortable working under tight deadlines, and companies may
expect them to work overtime or on weekends.
Knowledge and Skills
Applicants should know how to use a variety of standard office software, and some
jobs also require knowledge of networking. Companies prefer candidates with previous
PC repair experience (Immersion), and they may look for candidates with experience
repairing specific brands of computers. Technicians need strong oral communication
skills and should be able to explain their findings to customers using common terms.
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SELF-CHECK NO. 1.1-2
A. TRUE OR FALSE
Direction: Precautions and Procedures. Write TRUE if the statement is correct and
FALSE if the statement is wrong.
_________ 1. Anyone can perform a planned installation as long as he knows it. _________ 2. The Department of Education facilitates the
competency assessment for computer technicians. __________3. Computer Technicians are given the TESDA NC II Computer Systems
Servicing by TESDA after successfully taking the Assessment. _________ 4. Computer Technicians need not to have strong oral communication skills
for they only repair computers. __________5. Companies prefer candidates with previous PC repair experience and
they may look for candidates with experience repairing specific brands of computers.
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What I Need To Know?
LEARNING OBJECTIVES:
After reading this Information Sheet, you should be able to:
1. Identify fundamentals of Operating Systems 2. Determine the different types of operating systems
FUNDAMENTALS OF OPERATING SYSTEM
An Operating System (OS) is a set of programs that manage computer
hardware resources and provide common services for application software. The
operating system is a vital component of the system software in a computer system.
Application programs require an operating system which are usually separate programs
but can be combined in simple systems. Operating systems are found on almost any
device that contains a computer from cellular phones and video game consoles to
supercomputers and web servers.
TYPES OF OPERATING SYSTEMS:
Real-time
A real-time operating system is a multitasking operating system that aims at
executing real-time applications. The main objective of real-time operating systems is
their quick and predictable response to events. They have an event-driven or time-sharing
design and often aspects of both.
Read Information Sheet No 1.1-3 and find out how much you can
remember. Do Self-Check 1.1-3 to know how much you have learned.
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Multi-user
A multi-user operating system allows multiple users to access a computer system
concurrently. Single-user operating systems, as opposed to a multi-user operating
system, are usable by a single user at a time. Being able to use multiple accounts on a
Windows operating system does not make it a multi-user system. Rather, only the
network administrator is the real user.
Multi-tasking vs. Single-tasking
When only a single program is allowed to run at a time, the system is grouped
under a single-tasking system. However, when the operating system allows the execution
of multiple tasks at one time, it is classified as a multi-tasking operating system.
Distributed
A distributed operating system manages a group of independent computers and
makes them appear to be a single computer. The development of networked computers
that could be linked and communicate with each other gave rise to distributed computing.
Distributed computations are carried out on more than one machine. When computers in
a group work in cooperation, they make a distributed system.
Embedded
Embedded operating systems are designed to be used in embedded computer
systems. They are designed to operate on small machines like PDAs with less autonomy.
They are able to operate with a limited number of resources. They are very compact and
extremely efficient by design.
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EXAMPLES OF OPERATING SYSTEMS
DOS
DOS (Disk Operating System) was the first widely-
installed operating system for personal computers.
It is a master control program that is automatically
run when you start your PC. DOS stays in the
computer all the time letting you run a program and
manage files. It is a single-user operating system
from Microsoft for the PC. It was the first OS for the PC and is the underlying control
program for Windows 3.1, 95, 98 and ME. Windows NT, 2000 and XP emulate DOS in
order to support existing DOS applications.
UNIX
UNIX operating systems are used in
widely-sold workstation products
from Sun Microsystems, Silicon
Graphics, IBM, and a number of other
companies. The UNIX environment and
the client/server program model were
important elements in the development of
the Internet and the reshaping of
computing as centered in networks rather than in individual computers. Linux, a UNIX
derivative available in both "free software" and commercial versions, is increasing in
popularity as an alternative to proprietary operating systems.
Mac OS X
The Macintosh (often called "the Mac"),
introduced in 1984 byApple Computer, was the
first widely-sold personal computer with a
graphical user interface (GUI). The Mac was
designed to provide users with a natural,
intuitively understandable, and, in general, "user-
friendly" computer interface. This includes the
mouse, the use of icons or small visual images to
represent objects or actions, the point-and-click
and click-and-drag actions, and a number of
window operation ideas. Microsoft was
successful in adapting user interface concepts first made popular by the Mac in its first
Windows operating system. The primary disadvantage of the Mac is that there are fewer
Mac applications on the market than for Windows. However, all the fundamental
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applications are available, and the Macintosh is a perfectly useful machine for almost
everybody. Data compatibility between Windows and Mac is an issue, although it is often
overblown and readily solved.
LINUX
Linux (or GNU/Linux) is a Unix-like operating
system that was developed without any actual
Unix code, unlike BSD and its variants. Linux
can be used on a wide range of devices from
supercomputers to wristwatches. The Linux
kernel is released under an open source
license, so anyone can read and modify its
code. It has been modified to run on a large
variety of electronics. Although estimates suggest that Linux is used on 1.82% of all
personal computers, it has been widely adopted for use in servers and embedded
systems (such as cell phones). Linux has superseded Unix in most places, and is used
on the 10 most powerful supercomputers in the world. The Linux kernel is used in some
popular distributions, such as Red Hat, Debian, Ubuntu, Linux
Mint and Google's Android.
Microsoft Windows
Windows is a personal computer operating system from Microsoft that, together with
some commonly used business applications such as Microsoft Word and Excel, has
become a de facto "standard" for individual users in most corporations as well as in most
homes. Windows contains built-in networking, which allows users to share files and
applications with each other if their PCs are connected to a network. In large enterprises,
Windows clients are often connected to a network of UNIX and NetWare servers. The
server versions of Windows NT and 2000> are gaining market share, providing a
Windows-only solution for both the client and server. Windows is supported by Microsoft,
the largest software company in the world, as well as the Windows industry at large, which
includes tens of thousands of software developers.
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SELF-CHECK NO. 1.1-3
A. IDENTIFICATION
Direction: Write TRUE if the statement is correct and FALSE if the statement is
wrong.
________1) An operating system is a set of programs that manage computer hardware
resources and provide common services for application software.
________2) Operating system is not a vital component of the system software in a computer system. Application programs require an operating system which are usually separate programs, but can be combined in simple systems.
________3) Time-sharing operating systems schedule time for efficient use of the system and may also include accounting for cost allocation of processor time, mass storage, printing, and other resources.
________4) For software functions such as input and output and memory allocation, the operating system acts as an intermediary between application programs and the computer hardware.
________5) Operating systems are found on almost any device that contains a computer—from cellular phones and video game consoles to supercomputers and web servers
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What I Need To Know?
LEARNING OBJECTIVES:
After reading this Information Sheet, you should be able to:
1. Classify of the hardware and software components of a computer with its corresponding functions.
2. Determine the various computer components and peripherals
Basic Hardware Components of Computer System
A computer is an electronic machine, operating under the control of instructions
stored in its own memory, that can be programmed to accept data (input), process it into
useful information (output), and store it away in a secondary storage device (store) for
safekeeping or later reuse. The processing of input into output is directed by the software
but performed by the hardware. Figure below shows some common computer hardware
components.
Common Computer Hardware Components
Read Information Sheet No 1.1-4 and find out how much you can
remember. Do Task Sheet 1.1-4 to know how much you have learned.
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Computer system hardware components include devices that perform the
functions of input, processing, data storage; output and communication. The devices
responsible for these five areas are as follows:
Input devices. Input devices allow you to enter data or commands in a form that the
computer can use; they send the data or commands to the processing unit. Commonly-
used input devices include keyboard, mouse, microphone, scanner, digital camera, and
PC camera.
Output devices. Output devices show people the processed data--information --in
understandable and useful form. Four commonly used output devices are a printer, a
monitor, speakers, and a portable media player. Input/output devices are playing an
increasingly significant role in our lives. The number and variety of input/output devices
are expanding.
Processing devices. Processing devices are the computer electronic circuitry housed in
the system unit. The processor, formally known as the central processing unit (CPU), has
electronic circuitry that manipulates input data into the information people want. Computer
instructions are actually are executed in the central processing unit. Memory is a series
of electronic elements that temporarily holds data and program instructions while they are
being processed by the CPU. Both the processor and memory consist of chips. A chip is
an electronic device that contains many microscopic pathways designed to carry electrical
current.
Storage devices. Storage usually means secondary storage that can store data and
programs outside the computer itself. Storage devices hold data, information, and
programs permanently. Common storage devices include a hard disk, USB flash drives,
CDs, DVDs, and memory cards.
Communications devices. Communications devices provide connections between the
computer and communications networks, and enable computer users to communicate
and to exchange data, information, and programs with other computers. Communications
devices transmit these items over transmission media such as cables, telephone lines,
satellites, and cellular radio. A widely used communications device is a modem.
In summary, we communicate with computers through input/output devices. Input
devices translate our data and communications into a form that the computer can
understand. The computer then processes these data, and an output device translates
them back into a form we can understand. The central processing unit manipulates data
and controls the other parts of the computer system. Memory (primary storage)
temporarily stores data and program instructions during processing, while secondary
storage feeds data and instructions into the central processor and stores data for future
use.
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The System Unit
The system unit is a box-like case that houses the processor,
memory and other electronic components of the computer that are
used to process data. All other computer system devices, such as the
monitor, keyboard, and mouse, are linked either directly or indirectly
into the system unit.
The central processing unit (CPU), also called processor,
interprets and carries out the basic instructions that operate a
computer. The CPU significantly impacts overall computing
power and manages most of a computer's operations. The
processor is the device that executes program instructions.
The memory device is a package that holds temporarily data
and program instructions during processing.
An expansion card is a circuit board that adds devices or
capabilities to the computer. Finally, devices outside the system
unit, such as a keyboard, mouse, monitor, printer, or
microphone, are attached by a cable to a port or connector on
the system unit.
The motherboard, a single circuit board, provides the path
through which the processor communicates with memory
components, other components, and peripheral devices.
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Memory and storage sizes
While performing a processing operation, a processor needs a place to temporarily
store instructions to be executed and the data to be used with those instructions. Memory
is also known as primary storage or internal storage. This role of memory to store both
data and programs is known as the stored program concept. The size of memory is
measured by the number of bytes available for use. A kilobyte of memory is equal to
exactly 1,024 bytes. To make storage definitions easier to identify, computer users often
round a kilobyte down to 1,000 bytes. A megabyte (MB) is equal to approximately 1
million bytes. A gigabyte (GB) equals approximately 1 billion bytes. A terabyte (TB) is
equal to approximately 1 trillion bytes.
The system unit contains two types of memory: volatile and nonvolatile. The
contents of volatile memory are lost when the computer power is turned off. In
nonvolatile memory, the combination of circuit states is fixed, and therefore the contents
of nonvolatile memory are not lost when power is removed from the computer.
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Ports and Connectors
Serial port is a type of interface that
connects a device to the system unit by
transmitting data one bit at a time.
Parallel ports allow the parallel
transmission of data; that is, several bits are
transmitted simultaneously.
USB (Universal Serial Bus) ports are used
in high-speed device interfaces.
FireWire ports, also called IEEE 1394 port,
are similar to the USB port and can connect
multiple types of devices.
Power Supply
The power supply is the component of the system unit that
converts the wall outlet AC power into DC power. Different
motherboards and computers require different wattages on the
power supply
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TASK SHEET. 1.1-4
Title: Identify the Different Computer Components and Peripherals
Performance Objective In the tool shop, given the supplies, computer components and peripherals, materials, and equipment, you are required to identify the different computer components and peripherals and their specifications in 15 Minutes.
Supplies/Materials: Paper and Pen
Equipment:
1. Computer 2. PPE
Steps/Procedure:
1. Proceed to the station (with PC Unit) assigned to you 2. Identify the different components and write the specifications of each
component on your paper. 3. Submit output to trainer for evaluation
Assessment Method: Practicum with interview
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What I Need To Know?
LEARNING OBJECTIVES:
After reading this Information Sheet, you should be able to:
1. Identify the different tools and equipment used in computer systems and networks
2. Determine the different use and functions of these tools and equipment’s
TOOLS AND EQUIPMENTS
One important thing to consider before executing a well-planned computer installation
is that one must be knowledgeable in the different tools and equipment’s used in computer
systems and networks. Furthermore, the idea on how these tools and equipment’s are
properly used is another important consideration in installing computer systems.
Hardware Tools/Equipment’s
and their Functions
Illustrations
Protective Eyewear
Enclose or protect the eye area in order to prevent particulates, infectious fluids, or chemicals from striking the eyes
Multi-tester or Multi-meter
A multi-meter or a multi-tester, also known as a VOM (Volt-Ohm meter), is an electronic measuring instrument that combines several
measurement functions in one unit
Read Information Sheet No 1.1-5 and find out how much you can
remember. Do Self-Check 1.1-5 to know how much you have learned.
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Pliers (Assorted)
Pliers is a hand tool used to hold objects firmly, for bending, or physical compression.
Screwdriver
A screwdriver is a tool for driving screws and often rotating other machine elements with the mating drive system
Soldering Gun
A soldering gun is a tool for soldering metals using tin-based solder to achieve a highly conductive contact
Desoldering Tool
Desoldering tools are used for removing the molten solder so that the joint may be separated.
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Allen Wrench
A hex key, Allen key, or Allen wrench (also known by various other synonyms) is a tool of hexagonal cross-section used to drive bolts and screws that have a hexagonal socket in the head (internal-wrenching hexagon drive)
Flashlight
A flashlight (or torch in British
English) is a hand-held portable
electric-powered light source. Usually
the light source is a small incandescent
light bulb or light-emitting diode (LED)
IC Insertion and Extraction Tool
Used for extracting and inserting BIOS Chip
Mirror
In hardware servicing a mirror is used
for inspecting the peripherals
Tweezers
Tweezers are tools used for picking up
objects too small to be easily handled
with the human hands
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Antistatic Wrist Strap
An antistatic wrist strap, ESD wrist strap, or ground bracelet is an antistatic device used to safely ground a person working on very sensitive electronic equipment, to prevent the buildup of static electricity on their body, which can result in electrostatic discharge (ESD)
Gloves
A gloves are garments for covering and protecting the whole hand
Printer
a printer is a peripheral which
produces a text or graphics of
documents stored in electronic form,
usually on physical print media such as
paper or transparencies
Computer
A computer is
a programmable machine designed to
automatically carry out a sequence of
arithmetic or logical operations
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Windows Operating System
CD/DVD
An operating system is used as an
intermediary between hardware and
software
Device Driver CD/DVD
An application used to install the
device and peripherals of a computer
systems and networks
RS 232 pin insertion/extraction
tool
RS232 and D-Sub Pin Insertion and Removal Tool
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Computer Networking Tools and
Device and their Functions
Illustrations
Crimping Tool
A crimping tool is a tool designed
to crimp or connect a connector to
the end of a cable. For example,
network cables and phone cables
are created using a crimping tool to
connect the RJ-45 and RJ-
11 connectors to the end of the
cable. In the picture to the right, is
an example of what a crimping tool
looks like. This example shows a
tool capable of crimping both RJ-11
and RJ-45 connectors.
LAN Tester
A Device used for testing network
cable connectivity
UTP Unshielded Twisted Pair Cat
5 Cable
A cable used for computer
networking
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RJ 45 Connector
A plastic connector used for UTP
Cable to connect computers in a
network
Ethernet Switch
A network switch or switching
hub is a computer networking
device that connects network
segments or network devices
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SELF-CHECK NO. 1.1-5
A. TRU OR FALSE
Direction: Identify the Precautions and Procedures write TRUE if the statement is
correct and FALSE if the statement is wrong.
________1. Protective Eyewear enclose or protect the nose area in order to prevent particulates, infectious fluids, or chemicals ________2. Uni-tester is an electronic device for measuring instrument that combines several measurement and functions ________3. Fliers are hand tool used to hold objects firmly for bending or
physical compression ________4. A screw is a tool for driving screws and often rotating other machine elements with the mating drive system ________5. A Soldering Gun is a tool for soldering metals using tin-based
solder to achieve a highly conductive contact
B. Direction: Select your answer on the choices below that will correspond on the statement.
Write the letter of your answer on the space provided.
a. Mirror
b. Flash light
c. Gloves
d. Tweezers
e. IC Insertion and Extracting Tool
______ 1. A hand held portable electric light source
______ 2. Used for extracting and inserting BIOS Chip
______ 3. Used for inspecting peripherals
______ 4. Intended for picking up objects too small for human hands
______ 5. Used for hand protection
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What I Need To Know?
Learning Objectives:
1. Explain what is BIOS 2. Access the BIOS Setup 3. Select proper boot device
BIOS Setting
The BIOS or Basic Input/Output System is the basic controller that allows all of the components that make up a computer system to talk to one another. But in order for this to happen, there are a number of things that the BIOS needs to know how to do. This is why the settings within the BIOS are so critical to the operation of the computer system. For about 95% of the computer users out there, they will never need to adjust the BIOS settings of their computer. However, those who have chosen to build their own computer system will need to know how to modify the settings.
Some of the critical things one will need to know are the clock settings, memory timing, boot order and drive settings. Thankfully the computer BIOS has come a long way in the past ten years where many of these settings are automatic and very little needs to be adjusted.
How to Access the BIOS
The method for accessing the BIOS is dependent upon the manufacturer of the motherboard and the BIOS vender they have selected. The actual process to get to the BIOS is identical, just the key that is needed to be pressed will vary. It is important to have the user manual for the motherboard handy whenever changes will be made to the BIOS.
1. Power on the computer system.
2. Look up what key needs to be pressed to enter the BIOS. Some of the common keys used to access the BIOS are F1, F2 and the Del key. Generally, the motherboard will post this information when the computer first turns on.
Read Information Sheet No 1.1-6 and find out how much you can
remember. Do Self-Check 1.1-6 to know how much you have learned.
35
3. Press the key to enter the BIOS after the beep for a clean POST (Power-On Self Test) is signaled. If the procedure has been done correctly, the BIOS screen should be displayed rather than the typical boot screen.
Because of the wide variety of computer and BIOS manufacturers over the evolution of computers, there are numerous ways to enter the BIOS or CMOS Setup. Below is a listing of most of these methods, as well as other recommendations for entering the BIOS setup.
Note: Apple, or Mac, computers do not have a BIOS and instead utilize an EFI, which does not need to modified based on the hardware in the computer, like a BIOS. The EFI provides better integration between hardware and software for Apple computers, virtually eliminating the need for a BIOS.
Computers manufactured in the last few years allow you to enter the BIOS setup using
one of the five keys shown below during the boot process. • F1 • F2 * • F10 ** • DEL • ESC
* If pressing F2 opens a diagnostics tool, your setup key is likely F10
** F10 is also used for the boot menu. If F10 opens a boot menu, your setup key is likely F2.
Setup keys are to be pressed as the computer is booting up. Most users will see
a message similar to the example below upon startup. Some older computers may also
display a flashing block to indicate when to press the F1 or F2 keys.
Once you have successfully entered the CMOS setup, you should see a screen similar
to the example below. Your CMOS setup may look a little different, depending on the
manufacturer, but should still have most of the same options in the menu on the left or
along the bottom of the screen.
Major BIOS manufacturers include:
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➢ American Megatrends Inc. (AMI) ➢ Phoenix Technologies ➢ ALi
Boot Order
Boot order determines which device the motherboard will look at for an operating system or installer. The options typically include Hard Drive, Optical Drive, Floppy Drive, Network and Other. The standard order at first startup is Floppy, Hard Drive, Optical Drive, etc. This will generally cause the system to find the hard drive first which will not have a functional operating system on the computer.
Since we are installing a new operating system on the computer, and our installation
files are stored in a CD-ROM, we need to set the computer to boot from the CD-ROM
drive instead. This allows the computer to boot from the OS installation CD that has a
bootable installer program on it. This is done in the BIOS setup.
1. In the BIOS setup screen, look for the Boot Options Menu. This is usually found at the top of the screen. In some computers it is found in the Advance menu.
2. Select the CD-ROM Drive as the first boot device.
3. Go to the Exit menu and select Save and Exit to save your configuration.
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Note: You may need to consult the User's Manual on how to set the CD-ROM Drive as
first boot device.
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Self Check 1.1-6
I. Identification:
Identify the following acronyms:
1. BIOS - 2. POST –
II. Enumeration
1. What are the 3 common keys used to access the BIOS. 2. Enumerate the steps on how to set-up the CD-ROM as the first boot device.
III. Essay:
1. Why do we need to set the computer to boot from the CD-ROM drive?
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What I Need To Know?
Learning Objectives:
1. Install Operating System (OS) in accordance with established installation procedures and to comply with end-user requirements
2. Install peripherals/ devices in accordance with manufacturer’s instructions and/ or OS installation procedures
3. Configure peripherals/ devices in accordance with manufacturer’s instructions and/ or OS installation procedures
4. Access OS and drivers updates/ patches in accordance with manufacturer’s recommendations and requirements
5. Install OS and drivers updates/ patches in accordance with manufacturer’s recommendations and requirements
6. Check the quality of the work undertaken in accordance with established procedures.
Software Fundamentals
Software consists of computer programs, which are sequences of
instructions for the computer. The process of writing (or coding) programs is called
programming, and individuals who perform this task are called programmers.
TWO TYPES OF SOFTWARE
1. Systems software - is a set of instructions that serves primarily as an intermediary
between computer hardware and application programs and may also be directly
manipulated by knowledgeable users.
Categories:
1. Operating System
a. Mobile device operating systems( e.g Embedded Linux, Windows CE Pocket PC, Windows Embedded NT 4.0, The Palm OS)
b. Desktop and notebook computer operating systems(e.g. Windows, UNIX, Linux, The Macintosh, Enterprise server OS)
Read Information Sheet No. 1.2-1 and find out how much you can
remember. Do Self-Check 1.2-1to know how much you have learned.
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2. System Support Programs The second major category of systems software
3. System utilities-are programs that have been written to accomplish common tasks such as sorting records, checking the integrity of diskettes (i.e., amount of storage available and existence of any damage), and creating directories and subdirectories
4. System performance monitors are programs that monitor the processing of jobs on a computer system
5. System security monitors are programs that monitor the use of a computer system to protect it and its resources from unauthorized use, fraud, or destruction.
2. Application software - is a set of computer instructions that provide more specific functionality to a user. That functionality may be broad, such as general word processing, or narrow, such as an organization’s payroll program.
1.Proprietary application software addresses a specific or unique business need for a company 2. Off-The-Shelf Application Software can be purchased, leased, or
rented from a vendor that develops programs and sells them to many organizations.
Software Suites and Other Personal Application Software
Software suites are collections of application software packages that integrate many functions in one package.
Open Source Software- is software made available in source code form at no cost to developers
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Self-Check 1.2-1
Test I. Identification: ______________1.is the class of programs that control and support the computer
system and its information-processing activities.
______________2. is a set of computer instructions that provide more specific functionality to a user.
_______________3. supervises the overall operation of the computer, including monitoring the computer’s status and scheduling operations, which include the input and output processes.
_______________4. is a form of multitasking that focuses on running multiple tasks within a single application simultaneously.
_______________5. means managing the program or programs (also called jobs) running on the processor at a given time.
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What I Need To Know?
CREATING INSTALLERS
ISO and IMG Files
WHAT IS AN IMG OR ISO FILE? An IMG or ISO file is a complete image of physical
media such as a CD-ROM, DVD, floppy disk, etc. that contains all of the files in a
particular package.
Bootable Installation Packages
PACKAGE? IMAGE? DISK/MEDIA?
a. Installation Package: what you purchase from the WebStore b. Installation Image: the content of the installation package c. Installation Disk/Media: what you produce from the installation image through the
burning process
BOOTABLE INSTALLATION PACKAGE
The bootable installation package
contains a disk image that is identical to
the boxed product that you would
purchase at any software retailer. This
image may be burned directly to physical
media to produce a bootable installation
DVD. Once copied to physical media, this
package may be used to install an
Operating System on any compatible
hardware, with or without an existing
Operating System installed.
Read Information Sheet No. 1.2-2 and find out how much you can
remember. Do Self-Check 1.2-2 to know how much you have learned.
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WHAT DO I DO WITH MY INSTALLATION PACKAGE?
Your installation package contains one of the images identified in the previous section.
To install any software package from an image, the image itself must first be “mounted”
by the Operating System.
This can be accomplished by:
• Burning the image directly to DVD making sure to specify the source type as
“image”. Once the burning of the image is complete, the physical media can be
inserted into the computer and will be recognized like any other DVD. You must
have a writable DVD drive. See the Creating Bootable DVD Media section below.
• Burning the image directly to a USB thumbdrive. This is particularly useful for
those people who have Netbooks or other computers without a writable DVD
drive. See the Creating Bootable USB Media section below.
Note: Burning the file to a disk as a “data disk” will simply end up with an
.img or .iso file on the disk, which cannot be used for the installation.
Preparing physical media from a bootable installation Image REQUIREMENTS
To prepare physical media from a bootable installation image, you require the following:
• Writable DVD drive (DVD-R, DVD-RW, DVD+R, DVD+RW)
• Writeable DVD media
• CD/DVD Burning Software (Roxio©, Nero ©, Active@ ISO Burner, CD
BurnerXP Pro, etc.)
• Bootable Installation image
o The image downloaded when selecting the Bootable Installation
Package or that created from the Executable Installation Package using
the instructions in the section entitled “Creating A Bootable Installation
Image from the Executable Installation Package”
CREATING BOOTABLE DVD MEDIA
The general process for creating bootable DVD media is similar in all CD/DVD
burning software.
If you do not already have an application to burn files onto a DVD, you will need
to download a freeware version. Following are the steps to download Active@ISO
Burner (available through NTFS.com at http://software.lsoft.net/IsoBurner-Setup.exe).
If you choose to use a different application, follow the steps for that application
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LAUNCHING THE BURNING SOFTWARE
The instructions below use Windows as an example
To launch the burning software:
1. Double Click to launch the program.
SELECTING THE IMAGE TO BURN To select the image to burn:
1. In the Active@ISO Burner window, click on
the locator box as shown by the red arrow
2. Find and select the IMG file previously
downloaded.
3.Mode: Track-At-Once Speed:2.0x
4. Click Options: Check:
Verify Data & Burn in
Test Mode
5. Click Burn and wait for the process to Finish , then
Exit .
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TASK SHEET. 1.2-2
Title: Creating a Bootable DVD/CD
Performance Objective In the Computer Lab, given all the software and a computer, the learner must be able to create a an installation disk for Drivers, Applications and Utilities 15 Minutes.
Supplies/Materials: Software/Flash/USB Drive/Computer
Equipment: 1.Computer 2.Installation Software (Drivers, Application Software and Utilities) 3. PPE
Steps/Procedure: 1.Proceed to the station (with PC Unit) assigned to you 2. Create a :Driver Installers and Utilities
1. Submit output to teacher for evaluation
Assessment Method: Practical with interview
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What I Need To Know?
CREATING BOOTABLE USB MEDIA To create bootable USB Media:
To be able Create a Windows bootable USB from an ISO image we must have a
8GB or higher USB and a Windows 10 ISO image downloaded on your computer.
Download: Rufus app: https://rufus.akeo.ie/ Download Windows 10: https://goo.gl/Q75Q4d
Steps in Creating a bootable USB Media (Using Rufus) 1. Insert the USB Drive to any USB Port in your PC. 2. Double click the Rufus Application to launch the program. 3. Once its open, make sure the USB Drive you inserted can be seen Rufus, else click the drop down arrow to select your media. 4. On the Boot Selection Menu, Click Select. 5. Browse for your Windows Image file in your PC. 6. Click Start. When prompted with a Warning: ALL DATA… Click OK. 7. When the status bar reached 100 percent or Ready, click Close .
1
2
3
4
5
Read Information Sheet No. 1.2-3 and find out how much you can
remember. Do Task Sheet 1.2-3 to know how much you have learned.
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TASK SHEET. 1.2-3
Title: Creating a Bootable USB Drive
Performance Objective In the Computer Lab, given all the software and
a computer, the trainee must be able to create a bootable Windows in USB Drive in 25 Minutes.
Supplies/Materials: Software/Flash/USB Drive/Computer
Equipment: 1.Computer
2.Installation Software (Windows ISO File, Rufus, ISO Burner) 3. PPE
Steps/Procedure: 1.Proceed to the station (with PC Unit) assigned to you
2. Create a : 1. bootable Windows
2. bootable Windows Server 3. Driver Installers and Utilities
1. Submit output to teacher for evaluation
Assessment Method: Practical with interview
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What I Need To Know?
Installing Windows Operating System
Installing Windows 10
In order to install your copy of the Windows 10 operating system please make sure to
have the following items:
-Windows 10 Installation disk / bootable USB Drive
-Drivers CD: * Use after installation process if needed.
*NOTE: Please make sure to back up all of your important data before proceeding with
this installation.
Setting up your Computer & BIOS changes ( If required)
Boot your computer after popping in the Windows 10 DVD into the DVD Drive/ bootable
USB Drive. In most cases if you do this you'll automatically boot in to the Windows 10
Installation DVD. Bootable USB Drive. But in some cases if the Boot device order is
changed in the BIOS it may boot in to your older OS, instead of our DVD/USB Drive. In
that case you'll need to change the BIOS settings to get it done.
Before the starting installation make sure what type of PC you are using( 32bit or 64 bit)
To do this:
1. Right Click on This PC and click Properties: 2. You will then get the necessary information you need.
Booting Up and First Installation Steps
Read Information Sheet No. 1.3-1 and find out how much you can
remember. Do Self-Check 1.3-1 to know how much you have learned.
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The steps are pretty straight forward. Please read the descriptions in each pages
carefully before clicking the Next button.
Step 1. Insert the Windows operating
system disk into your DVD/USB drive, and
then restart your computer
Step 2. You will see a prompt that says
‘Press any key to continue’. When you see
this press any key immediately. *NOTE:
The following screen shots may differ from
what you may see during your installation.
Step 3: Starting windows with windows
logo will appear
Step 4: Language option , by default is
English will be set along with “time currency “
format and “keyboard” or input method. Click
Next
Step 5. Install Now
You will be prompted
to enter the license
key. You can choose
skip at this time
Step 6. End User License Agreement ( E.U.L.A) check
the box and click “Next”
Step 7: “Which type of installation?” will appear.
Choose Custom(advanced) for clean
installation.
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Step 8. “Where do you want to install Windows?” Make
sure the partition is highlighted.
Step 9. Delete the partition by clicking on Drive options
(advanced) on the bottom right corner of the field.
Make sure the partition is highlighted and click Delete.
Note: Deleting all the partition will erase all data in the system
Step 10. Disk 0 Unallocated Space should be the
only listing at this point. If it is press next, if not
please delete any additional partitions that are
listed. Clicking Next will automatically reformat the
drive and install the Operating System
Step 11. The next screen will show “Installing
Windows” This process will take approximately
25-20 minutes after which the system will reboot.
Note: Do not press any key during this boot
up process so as not to disturb the rest of the
installation process.
Step 12. The next screen will show “Installing
Windows” to complete the installation process.
Step 13. “Set=up is staring windows “ will appear,
then you will be asked to create a username and a
computer name
Step 14. The next screen will prompt you to
create a password for your account (optional)
At this point windows installation will be setting up
you computer for its first run.
The installation is done. You have successfully installed Windows 10.
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TASK SHEET. 1.3-1
Title: Installing Windows 10
Performance Objective In the Computer Lab, given all the software and a computer, the trainee must be able to Install Windows Operating system,
Drivers, Applications and Utilities in 1 hour
Supplies/Materials: Software/Flash/USB Drive/Computer
Equipment:
1.Computer
2.Installation Software (Windows Operating System Installer, Drivers, Application Software and Utilities) 3. PPE
Steps/Procedure:
1.Proceed to the station (with PC Unit) assigned to you 2. Clean Install a Windows 10 Operating System
3. Install all Device Drivers 4. Install windows Update 5. Install third Party Software
a. Antivirus b. MS Office
c. PDF Reader d. Web Browser
Assessment Method: Practical with interview
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What I Need To Know?
Installing Device Drivers
Device driver
More commonly known as a driver, a device driver or hardware driver is a group of files
that enable one or more hardware devices to communicate with the computer's operating
system.
How do I locate software or drivers for my computer?
Determine the hardware
Before searching for the drivers or software of a device, make sure you know the
manufacturer and model of the device.You can often find the drivers available for
download from the manufacturer's web page or the drivers and utilities CD shipped with
your computer. You can find a listing of computer manufacturers in the internet.
What hardware device drivers should be updated?
Below is a listing of recommended hardware devices that you should make sure
are updated. Updating your computer's drivers and other updates can resolve problems,
improve the performance, and increase the stability of your computer.
➢ BIOS updates ➢ CD or DVD drive drivers and firmware ➢ Controllers ➢ Display drivers ➢ Keyboard drivers ➢ Mouse drivers ➢ Modem drivers ➢ Motherboard drivers and updates ➢ Network card drivers ➢ Printer drivers ➢ Removable media drivers ➢ Scanner drivers ➢ Sound card drivers ➢ Video drivers ➢ BIOS updates
Read Information Sheet No. 1.3-2 and find out how much you can
remember. Do Self-Check 1.3-2 to know how much you have learned.
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What order should I install my computer drivers in?
After reinstalling Windows or your operating system you may find that you have to
reinstall many if not all of the drivers for your computer components. Microsoft Windows
and all other operating systems will not require you install drivers in order. As long as you
are installing the correct drivers for your computer you should have no issues installing
the drivers in any order.
Computer drivers, firmware, and software
Click the following link
http://www.computerhope.com/drivers/index.htm
follow this link for Tips and Tricks in installing and updating device drivers.
https://www.youtube.com/watch?v=BDtwfRnEl7I
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What I Need To Know?
Installing an Application Software
Application software consists of programs designed to perform specific tasks for users.
How To Start A Software Application?
Both the Microsoft Windows and the Apple Macintosh operating systems use the
concept of a desktop. The desktop is an on-screen work area with common graphical
elements such as icons, buttons, menus, links, windows, and dialog boxes. A software
application can be started by clicking its program name on a menu, or list of commands.
The Widely Used Products and its key features
1. People use productivity software to become more effective and efficient while
performing daily activities. Word processing software allows users to create and
manipulate documents that contain text and graphics. With word processing software,
you can insert clip art into a document; change margins; find and replace text; use a
spelling checker to check spelling; place a header and footer at the top and the bottom of
a page; and vary font (character design), font size (character scale), and font style
(character appearance).
2. With spreadsheet software, data is organized in rows and columns, which collectively
are called a worksheet. The intersection of a row and column, called a cell, can contain a
label (text), a value (number), or a formula or function that performs calculations on the
data and displays the result.
3. Database software allows you to create and manage a database. A database is a
collection of data organized to allow access, retrieval, and use of that data. A query is
used to retrieve data according to specified criteria, which are restrictions the data must
meet.
4. Presentation graphics software is used to create presentations that communicate
ideas, messages, and other information to a group through a slide show. You can use a
clip gallery to enhance your presentation with clip art images, pictures, video clips, and
audio clips.
5. A personal information manager (PIM) is software that includes an appointment
calendar to schedule activities, an address book to maintain names and addresses, and
Read Information Sheet No. 1.4-1 and find out how much you can
remember. Do Self-Check 1.4-1 to know how much you have learned.
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a notepad to record ideas, reminders, and important information. A software suite is a
collection of individual applications sold as a single package.
6. Project management software allows you to plan, schedule, track, and analyze the
progress of a project. Accounting software helps companies record and report their
financial transactions.
7. Power users often use software that allows them to work with graphics and multimedia.
Computer-aided design (CAD) software assists in creating engineering, architectural,
and scientific designs. Desktop publishing (DTP) software is used to design and produce
sophisticated documents. DTP is developed specifically to support page layout, which is
the process of arranging text and graphics in a document. Paint software is used to draw
graphical images with various on-screen tools. Image editing software provides the
capability to modify existing images. Video editing software and audio editing software
can be used to modify video and audio segments.
8. Multimedia authoring software is used to create electronic interactive presentations
that can include text, images, video, audio, and animation. Web page authoring software
is designed to create Web pages and to organize, manage, and maintain Web sites.
9. Integrated software combines several productivity software applications that share a
similar interface and common features into a single package. Personal finance software
is an accounting program that helps pay bills, balance a checkbook, track income and
expenses, follow investments, and evaluate financial plans. Legal software assists in the
creation of legal documents and provides legal advice. Tax preparation software guides
users through the process of filing federal taxes. Personal DTP software helps develop
conventional documents by asking questions, presenting predefined layouts, and
supplying standard text.
10. Photo-editing software is used to edit digital photographs. A clip art/image gallery is
a collection of clip art and photographs that can be used in all types of documents. Home
design/landscaping software assists with planning or remodeling. Educational software
teaches a particular skill and exists for about any subject. Reference software provides
valuable and thorough information for all individuals. Entertainment software includes
interactive games, videos, and other programs designed to support a hobby or provide
amusement.
11. One of the main reasons people use computers is to communicate and share
information. E-mail software is used to create, send, receive, forward, store, print, and
delete e-mail (electronic mail). A Web browser is a software application used to access
and view Web pages. A chat client is software that allows you to connect to a chat room,
which permits users to chat via the computer.
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12. A newsreader is a software program used to participate in a newsgroup, which is an
online area on the Web where users conduct written discussion about a particular subject.
An instant messenger is a software program installed to use instant messaging (IM), a
real-time communications service that notifies you when one or more people are online
and then allows you to exchange messages or files. Groupware is a software application
that helps groups of people on a network work together and share information. A
videoconference is a meeting between two or more geographically separated people who
use a network or the Internet to transmit audio and video data.
Various Products Available As Web Applications
A Web application is a software application that exists on a Web site. To access the
Web application, you visit the Web site that offers the program.
The Learning Aids Available With Many Software Applications
Many software applications and Web sites provide learning aids. Online Help is the
electronic equivalent of a user manual. Usually integrated into an application software
package, online Help often is context-sensitive, meaning that the Help information is
related to the current task being attempted. Most online Help also provide links to Web
sites that have a FAQs page. FAQs (Frequently Asked Questions) supply answers to
common queries. Many books are available to help you learn to use the features of a
personal computer application package. A wizard is an automated assistant that helps
complete a task by asking questions and then performing actions based on the answers.
Popular types of application software can be categorized by their general use:
➢ productivity software, ➢ graphics design/multimedia software, ➢ home/personal/educational software, ➢ and communications software.
An application can belong to more than one category. For example, an e-mail program
can be considered both productivity software and communications software.
Anti-Virus
Overview
Anti-virus is a security program you install on your computer or mobile device to protect
it from getting infected by malware. The term “malware” is a catch-all phrase for any type
of malicious software, such as viruses, worms, Trojans and spyware. In fact, the term
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malware comes from combining the words malicious and software. If your computer has
become infected by malware, a cyber attacker can capture all of your keystrokes, steal
your documents or use your computer to attack others. Contrary to what some people
believe, any operating system, including Mac OS X and Linux, can be infected.
Types of Computer Viruses
Browser Hijacker
One type of virus is called a browser hijacker. This works in a way that it takes over parts
of the internet browser you are using and redirects it to certain sites. Its purpose is to
increase advertisement revenue by bringing traffic to certain web pages.
Directory Virus
A second type of virus is known as a Directory Virus and are also called File System Virus
or Cluster Virus. This virus works by changing the path that indicates the files location by
infecting the directory of your computer. These infect the entire directory but are usually
found in a location in the disk. An example is Dir-2 virus. These make it difficult to locate
your files and may seem that files have disappeared.
Trojan
Trojan or Trojan horse is sent to your computer by a program that it is hidden inside . A
trojan disguises itself to make one believe it is an important or useful program. These are
often in highly desirable downloads like games, free software, and even movies or music.
Trojans are different that other viruses, because they don’t multiply or spread. However,
they are very dangerous because they can capture your login information on sites that
you input your information.
Memory Resident Virus
Memory Resident Virus are put on your computers memory. When the operating system
runs the virus gets activated and every file that was opened gets infected. Even after
execution of the malicious code the virus stays hidden in the RAM. This virus corrupts
programs and files that are used in any way. Randex, Meve and MrKlunky are some, just
to name a few.
Overwrite Virus
Another type is Overwrite Virus. This virus takes a file and infects it and the information
in it is deleted, once that happens the file is partially useless or totally. The file size is not
changed even though the content has been replaced. The file needs to be deleted, and
you will lose the content originally in it.
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Anti-Virus Tips
1.Obtain anti-virus software only from known, trusted sources and vendors. It is a
common ploy of cyber attackers to distribute fake anti-virus programs that are really
malware.
2. Make sure you have the latest version of your anti-virus software installed, that your
annual subscription is paid for and active and that your anti-virus is configured to update
automatically. If your computer has been offline or powered off for a while, your anti-virus
software will need to update itself when you turn it back on or reconnect it to the Internet.
Do not postpone these updates.
3. Make sure your anti-virus automatically scans portable media, such as USB sticks, and
ensure real-time protection is on.
4.Pay attention to the on-screen warnings and alerts generated by your anti-virus
software. Most alerts include the option of getting more information or a recommendation
about what to do next. If you get an alert on a work-supplied computer, be sure to contact
the help desk or your supervisor immediately.
5.Do not disable or uninstall your anti-virus software because you feel it is slowing down
your computer, blocking a website or preventing you from installing an app or program.
Disabling your anti-virus will expose you to unnecessary risk and could result in a serious
security incident. If problems persist on a work computer, contact your help desk. If the
problems persist on your personal computer, try contacting the anti-virus vendor, visiting
their website for more information or replacing your anti-virus with another product.
6.Do not install multiple anti-virus programs on your computer at the same time. Doing so
will most likely cause the programs to conflict with each other and may actually reduce
the security of your computer.
7.Learn to recognize the warnings that your anti-virus software produces. Cyber attackers
can set up malicious websites that post very realistic but fake anti-virus warnings and
offer to help you “fix” your computer. Clicking on the links or buttons on these websites
can actually harm your computer.
Visit: https://www.youtube.com/watch?v=6ZGhDPfSXXA
https://www.youtube.com/watch?v=TyvNWL4QaQw
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What I Need To Know?
Conduct Testing and Documentation
CONDUCT TEST ON THE INSTALLED COMPUTER SYSTEM
You were introduced with all the necessary knowledge and skills on installation of
computer devices and operating system. Now, after executing the correct procedures I
am sure that installation is a very easy task for you.
Those skills will be very essential for the next lesson.
In the next phase of your learning it will focus in conducting test on the 588 installed
computer components. After reading all the required topics and performing the essential
skills you must be able to:
✓ Follow OHS policies and procedures in conducting tests; ✓ Check circuits and systems being isolated using specified testing procedures; ✓ Test devices, systems and/or installation to determine its conformity with the
requirements; ✓ Undertake final inspections on the installed devices, systems to ensure conformity
with the requirements; ✓ Accomplish technical reports on the tests conducted; and ✓ Follow procedures in forwarding documentation to appropriate personnel and/or
authority on the test conducted.
TESTING INSTALLED EQUIPMENT / DEVICES (COMPONENTS)
As computer technician you will need a good understanding of the health and safety
regulations from early on in your career, so that you understand the good practices
demanded by law. In particular, you need to:
✓ report any accidents ✓ take reasonable care of your own health and safety when moving heavy
components ✓ not cause any electrical hazards ✓ make sure that workstations meet safety requirements.
You need to adhere to health and safety regulations as they will help to protect you and
others and will avoid any unnecessary legal action for reckless and unsafe working
practices. If you identify any health and safety problems, you should tell yourline manager
or the health and safety representative immediately.
Read Information Sheet No. 1.5-1 and find out how much you can
remember. Do Self-Check 1.5-1 to know how much you have learned.
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The most basic test is to switch the system on to check it starts without errors. ICT
professionals are also likely to use tools and utilities to check that all is well with the
system after an installation.
The Use of Diagnostic Tools in testing installed hardware components and other
peripherals
Diagnostic tools are used to test and diagnose equipment. Diagnostic tools include the
following:
➢ Digital multimeter is a device that can take many types of measurements. It tests the integrity of circuits and the quality of electricity in computer components. A digital multimeter displays the information on an LCD or LED.
➢ A loopback adapter, also called a loopback plug, tests the basic functionality of computer ports. The adapter is specific to the port that you want to test.
➢ The toner probe, is a two-part tool. The toner part is connected to a cable at one end using specific adapters, such as an RJ-45, coaxial, or metal clips. The toner generates a tone that travels the length of the cable. The probe part traces the cable. When the probe is in near proximity to the cable to which the toner is attached, the tone can be heard through a speaker in the probe.
Software Tools
Like hardware tools, there are a variety of software tools that can be used to 643
help technicians pinpoint and troubleshoot problems. Many of these tools are free and
several come with the Windows operating system.
Disk Management Tools
Software tools help diagnose computer and network problems and determine
which computer device is not functioning correctly. A technician must be able to use
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a range of software tools to diagnose problems, maintain hardware, and protect the
data stored on a computer.
You must be able to identify which software to use in different situations. Disk
management tools help detect and correct disk errors, prepare a disk for data
storage, and remove unwanted files.
The following are some disk management tools:
➢ FDISK: A command-line tool that creates and deletes partitions on a hard drive. The FDISK tool is not available in Windows XP, Vista, or 7. It has been replaced with the Disk Management tool.
➢ Disk Management Tool: Initializes disks, creates partitions, and formats partitions.
➢ Format: Prepares a hard drive to store information. ➢ ScanDisk or CHKDSK: Checks the integrity of files and folders on a hard
drive by scanning the file system. These tools might also check the disk surface for physical errors.
➢ Defrag: Optimizes space on a hard drive to allow faster access to programs and data.
➢ Disk Cleanup: Clears space on a hard drive by searching for files that can be safely deleted.
➢ System File Checker (SFC): A command-line tool that scans the operating system critical files and replaces files that are corrupted.
Use the Windows 10 boot disk for troubleshooting and repairing corrupted files. The
Windows 10 boot disk repairs Windows system files, restores damaged or lost files,
and reinstalls the operating system.
Test procedures
A test procedure is a set of steps to guide you through what needs to be done to
thoroughly test the installation. It is designed to help you work more effectively and to
make sure you test everything that needs testing.
Test procedures are created in-house and could include these steps:
1. Gathering test information. The first step is to run the tests required by the
procedure and find out what happens. You should record all the results of your tests
in a log so that you know which pass and which fail, thereby requiring further action.
2. Validating the test information. The next step is to check the data you gathered
from the tests to make sure it is correct. This is usually done by running the tests
again.
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3. Responding to test information. This step is important because you need to be
able to recognize when a test shows problems or is successful. For example, if ping
is used to test a network connection then ‘Request timed out’ shows the test was not
successful.
4. Checking specification. The final step is an important end to testing. You need to
check the specification for the installation to make sure that it has been met. For
example, if a user requested an upgrade to make their display run at 1920 x 1200,
then the ICT professional should check that the graphics card and screen can do this.
External Visual Inspection
The external visual inspection consists of a quick inspection of the exterior of the
computer, the monitor, the keyboard, any peripherals, and cables. While performing
the visual inspection, make any necessary corrections. To perform the external visual
inspection, perform the following steps:
1. Turn off the computer, the monitor, and all peripherals.
2. Verify that all power cables are properly connected to the computer, the monitor
and peripherals, and their power sources.
3. Verify that the keyboard and mouse interface cables are firmly attached to the
proper connectors on the back of the computer.
➢ For a PS/2-compatible mouse, the keyboard and mouse interface cable connectors are identical except for their labels.
➢ For a serial mouse, the mouse interface cable must be firmly attached to one of the serial port connectors, and its captive screws must be secure enough to ensure a firm connection.
4. Verify that network cables (if present) are properly attached.
5. Verify that any devices attached to the serial and parallel port connectors are
properly connected.
➢ Each of the serial and parallel port interface cables must be firmly attached to an appropriate connector on the back of the computer as well as to the interface connector on the device. The captive screws that secure these connectors at each end of the interface cable must be secure enough to ensure a firm connection.
6. Verify that the video interface cable is firmly attached to the video connector on the
back panel or to a video expansion card, and also to the connector on the back of the
monitor. For proper connection of the video monitor, see the documentation for the
monitor.
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7. Inspect all external monitor controls for any obvious damage or improper settings.
For proper settings of the video monitor controls, see the documentation for the
monitor.
8. Inspect the keyboard to ensure that no keys are sticking. If one or more keys are
sticking, it may be necessary to replace the keyboard.
9. Inspect the exterior of the computer, including all controls and indicators, and all
user-accessible data storage devices for any signs of physical damage. Does the
inspection reveal any problems?
Yes. Proceed to the appropriate procedure in "Removing and Replacing Parts."
No. Proceed to "Observing the Boot Routine."
Observing the Boot Routine
After you have performed an external visual inspection as described in the previous
section, you should boot the system and, while the boot routine is running, observe
the system for any indications of problems.
NOTE: Most of the steps in this procedure require observation of system functions
and indications, some of which can occur simultaneously. It may be necessary to
reboot the system several times to complete all of these steps.
To observe problem indications during the boot routine, perform the following steps:
1. If the system is off, turn on all peripherals and the computer.
2. Check the power supply fan.
Does the fan run normally?
o Yes. Proceed to step 3.
o No. Troubleshoot the system power supply.
3. Watch the <Num Lock>, <Caps Lock>, and <Scroll Lock> indicators on the
upper-right corner of the keyboard. After all three indicators flash momentarily, and
following a long pause (approximately 30 seconds), the Num Lock indicator should
light up and remain on (unless the Num Lock option is set to Off in the System Setup
program). Do these indicators flash on and off within approximately 10 seconds after
the boot routine starts?
o Yes. Proceed to step 4.
o No. Troubleshoot the system power supply. If the troubleshooting
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procedure indicates that the system power supply is operational, troubleshoot
the memory.
4. During the boot routine, observe the system for any of the following indications:
o Beep codes — A beep code is a series of beeps that indicates an error condition.
o System error messages — these messages can indicate problems or provide
status information.
o Diskette-drive and hard-disk drive access indicators — These indicators light up in response to data being transferred to or from the drives. If either of these indicators fails to light up during the boot routine, troubleshoot the diskette drive or hard-disk drive subsystem, as
appropriate.
5. Observe the monitor screen for the Diagnostics menu.
Internal Visual Inspection
NOTICE: Before you proceed with the internal visual inspection described in this section,
ensure that the user has saved all open files and exited all open application programs if
possible.
A simple visual inspection of a computer’s interior hardware can often lead to the
source of a problem, such as a loose expansion card, cable connector, or mounting
screw. To perform the internal visual inspection, perform the following steps:
1. Turn off the system, including any attached peripherals, and disconnect all the 779 AC
power cables from electrical outlets.
CAUTION: Before beginning to work inside the computer, disconnect the power
supply from the power source and the power supply cables from the power supply.
2. Remove the computer’s right side cover.
CAUTION: The heat sink assembly can get extremely hot during system operations.
Be sure that it has had sufficient time to cool before touching it.
CAUTION: When handling the heat sink assembly, take care to avoid sharp edges
on the heat sink.
3. Verify that the chips, expansion cards, and SEC cartridge and heat sink assembly or
assemblies are fully seated in their sockets or connectors.
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4. To ensure that the chips are fully seated in their sockets, press firmly on the top of each
chip.
5. Verify that all jumpers are set correctly.
6. Check all cable connectors inside the computer to verify that they are firmly 788
attached to their appropriate connectors.
7. Reinstall the computer cover.
8. Reconnect the computer and any attached peripherals to their power sources, 791 and
turn them on.
Testing Computer System
Is your PC healthy? Don't be too sure. Think back to when you heard a kerklunk sound
coming from the hard drive. Or maybe you remember the last time your Internet
connection was down.
The best way to find out what's wrong is to take a proactive approach: Check under your
PC's hood with the following mostly free diagnostic tools, and see if anything is amiss--
before disaster strikes.
Three Major Components of Computer System:
o Hardware o Software o Firmware
Test Your Hardware
Checking your computer hardware and its peripherals
1. Computer Monitor and its peripherals
o Monitor and interface cables o Video card o Monitor power cable
2. Keyboard and Mouse
o Keyboard connector o Mouse Connector
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3. I/O port and devices
o Connection between the I/O port and the peripheral device o A faulty cable between the I/O port and the peripheral device o A faulty peripheral device o Incorrect settings in the System Setup program o Incorrect settings in the system's configuration files o Faulty I/O port logic on the system board
4. Power supply
o Power cord o Fuse
Testing Your Software
Check the different software installed in the computer.
1. Operating system
Run live updates for your operating systems to get the latest patches and
protection for your OS.
Run registry scanners to check the OS registry configuration
2. Application Software
Check for live updates
3. Anti-virus software
Run anti-virus program
Check for virus signature updates
Check for spyware updates
Test Your Firmware
Firmware- is a combination of hardware and software integrated on a chip.
To test the firmware
Check for the correct configuration can accomplish this by configuring the BIOS in
the computer
Error Beep codes
When a PC is first switched on or reset it performs a special diagnostic test called a POST
(Power-On Self Test), to check all components in the PC, the POST program sends out
a signal to each device initializing each device's built-in self test procedure.
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The POST test is a two stage process:
1. First, it will check all the basic components including among other things the system
clock, the processor, RAM, the keyboard controller and the Video
2. After the video has been tested the BIOS will then indicate any errors encountered by
displaying either a numeric code or a text message on the screen.
When a device fails the first part of the POST, the BIOS will send a series of beeps from
the PC's speaker (internal) to inform the PC user that there is a problem these beeps are
coded allowing the user to diagnose the troublesome component. When the POST has
been completed successfully, the PC will make a short beep to let the user know
everything is as it should be.
Three (3) major brands of BIOS chip
1. AWARD BIOS
2. Phoenix BIOS
3. AMI BIOS
Each type of BIOS chip has it own error
code
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Phoenix BIOS ERROR BEEP
CODES
Phoenix BIOS beep codes are a
series of beeps separated by a
pause, for example: beep ---
beep beep --- beep --- beep
beep would be 1-2-1-2
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Self-Check1.5-1
I. Identify what computer error is illustrated on the following situations.
__________1. The LED indicator of your monitor is in steady orange color.
_________ 2. When you open your PC, nothing shows up in your monitor and
the LED indicator of your monitor is flashing in yellow color.
__________3. When you open your PC it will show the processor brand and/or
the motherboard brand but doesn't continue. Usually this error
will result to system restart over and over again.
__________4.This also happens even if you try disconnecting your computer
set from the internet. This is what we called aftershock virus
which will continue to run even if internet is disconnected.
__________5. The computer opens up then boots but when the operating
system loads it doesn't continue and it will take a lifetime if you're going to
wait for it to load.
__________6. This happens even if you try installing the hardware. When you
restart your set it will happen again.
__________7. When you try going to safe mode all you will see is a list of files
in Command prompt style.
__________8. Upon loading he operating system, you will hear a loading sound
and then the sound stops, when you try running an audio file, no sound will
be heard
__________9.This will happen only in standby mode, when you move your
mouse or type something, your system will automatically restart
and the worst part is it will delete a file at random.
__________10. Just like the mouse problem, when you open a program that
will take the whole screen like for example a game and/or a program
applications, when you close it, it will cause your system to restart.
Test II. List down 5 common computer problems and their solutions
Common Computer Problems Solutions
1..
2..
3..
4..
5..
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Post-Test
1. What does BIOS stand for?
a. Basic input output system b. Basic induct online system c. Basic industry online standards d. Basic insulator open source
2. CPU is the _____________ of the computer.
a. mother b. system c. brain d. process
3. What cable is used to connect PC to switch hub and router?
a. UTP cable b. straight thru cable c. cross over cable d. copper cable
4. Is the hardware in a computing device where the operating system (OS), application programs and data in current use are kept so they can be quickly reached by the device's processor.
a. RAM b. Operating system c. CPU d. HDD
5. What RAM stands for?
a. Random Access Memory b. Random Autonomous Memory c. Read Action Memory d. Rare Ally Memory
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6. Identify the malwares. a. trojan b. virus c. spyware d. all of the choices
7. An example of super computer is : a. MP3 players b. Desktop c. Cell phones d. Mainframe computers
8. ROM is a. random access memory - temporary b. random access memory - permanent c. read only memory - temporary d. read only memory – permanent
9. An example of a software : a. USB b. Printer c. Excel d. Keyboard
10. USB stands for a. Universal Serial Bus b. University Serial Bus c. Universal Serial Body d. Universal Series Bus
11. What is this?
a. Mouse b. Speakers c. Keyboard d. Monitor
12. What is this?
a. CPU b. Modem c. Internet d. Cable
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13. What is this?
a. Malware b. Software c. Hardware d. People
14. OS stands for a. Onsite Software b. Operating System c. Only Read Software d. On-demand System
15. What is this?
a. CPU b. Processor c. System Unit d, PC
Generalization
This module gave you the opportunity to develop your knowledge, hone your skills,
behavior and motivations required in Installing and Configuring Computer Systems that
is in line with the industry standards.
You learned to Assemble computer hardware, Prepare installer, Install operating
system and drivers for peripherals/devices, install application software and conduct
testing and documentation.
This will prepare you to move on to the next lessons to improve and gain important
knowledge and skills in Setting up Computer Networks.
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Glossary of Terms
Soldering - is a term that describes the process of joining two pieces of metal using a
filler metal.
Memory - Memory is a temporary storage area that holds data and instructions for an
electronic device to function.
Motherboard -A motherboard is a printed circuit board containing the components of an
electronic device.
Processor -This is the hardware within a computer that executes programs.
Microprocessor-A microprocessor is a central processing unit, or CPU, contained on a
single integrated circuit.
Power Supply -The power supply converts main AC current to low-voltage regulated DC
current used to power an electronic device.
Expansion Card -An expansion card is a circuit board that can be added to the
motherboard to give extra memory for processing data.
RAM-Random Access Memory, or RAM, is the term given to computer data storage
used to store frequently accessed data to increase the speed of the system.
Firmware-Firmware is permanent software programmed into a read-only memory that
controls, monitors, and manipulates the data stored in an electronic device.
Peripherals- are devices used to input or output data to and from the user and an
electronic device. The most widely used peripheral devices include mice, keyboards,
monitors, and printers.
I/O stands for input/output. This term refers to the communication between an
electronic device and a person, the internet, or another information processing system.
VGA-Video Graphics Array, or VGA, is the connector typically used to plug a peripheral,
most likely a monitor, to an electronic device.
HDMI-High-Definition Multimedia Interface, or HDMI, is used to transmit data between
components, typically an electronic device and monitor or television.
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PS/2 -PS/2 is a six-pin mini-DIN connector used to connect some PC compatible
computers with keyboards and mice.
USB-USB stands for Universal Serial Bus. It is used to connect a computer to devices
and peripherals.
Serial Ports-A serial port is a communication interface that transfers one bit of data in or
out to modems, terminals, and peripherals.
Parallel Ports- A parallel port is a communication interface that transfers several bits of
data simultaneously to peripherals.
Disk Cleanups -Disk cleanups are designed to free up disk space on a computer’s hard
drive.
Antivirus Software -Antivirus software detects and destroys computer viruses. A
computer virus is code that is capable of copying itself to corrupt a system or destroy
data.
Antimalware-Antimalware is software that protects a computer from infections that are
aimed at stealing data from the user or computer.
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Author
Alexis V. Larosa Teacher II
Alubijid National Comprehensive High School-Senior High School Division of Misamis Oriental
Bachelor of Science in Computer Engineering Master’s in Management in Engineering Management
Doctor of Philosophy in Educational Supervision & Admin (CAR)
National TVET Trainer Certificate (NTTC) -VGD NC III National TVET Trainer Certificate (NTTC)-CSS NC II
Trainers Methodology I Visual Graphic Design NC III
Computer System Servicing NC II
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Key Answers
PRE-TEST/ POST TEST
SELF-CHECK 1.1-1
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SELF-CHECK 1.1-2
SELF CHECK NO. 1.1-3
SELF-SCHECK 1.1-5
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Self-Check 1.1-6
Self-Check 1.2-1
Self-Check1.5-1
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References
1. http://www.workcover.nsw.gov.au/OHS/default.htm 2. www.cengageasia.com 3. www.wikipedia.com 4. commons.wikimedia.org
Video clips http://PCitYourself.com https://www.youtube.com/watch?v=6ZGhDPfSXXA https://www.youtube.com/watch?v=TyvNWL4QaQw 5S – http://www.kaizenworld.com/_Media/5s-explanation_med_hr.jpeg http://www.canstockphoto.com/images-photos/ http://www.netanimations.net/computers.htm 3R – http://www.ecocentric.co.in/site/wp-content/uploads/2013/07/reduce-reuse-recycle.jpg http://www.neptunoeng.com/images/3r.png http://ogs.ny.gov/Global/Images/BU/BA/RPM/Rx3.gif11/2/15 http://www.mymcpl.org/_uploaded_resources/go_green_0.jpg Effects of contaminants - https://upload.wikimedia.org/wikipedia/commons/2/2c/PCB_corrosion.jpg https://upload.wikimedia.org/wikipedia/commons/2/2c/PCB_corrosion.jpg http://media.salon.com/2015/01/discarded_computers_resize.jpg