chapter1 introduct to computer hardware and software · that make up a computer. operating system -...

Basic Network

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CompTIA A+ Guide to Managing & Maintaining Your PC By: JEAN ANDREW

Introduction of Computer Software and

Hardware

Chapter 1:

Objectives

� Purpose and Uses of Personal Computer

� Local and Network Applications

� Identify the Motherboard, CPU, RAM, Power Supply, and Case.

� Identify the type of Adapter Cards

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� Identify the type of Adapter Cards

� Identify the type of Storage Devices

� Identify the type of Portable Devices

� Identify the type of Peripheral Devices

Purpose and Uses of Personal Computers

� Computers are used all over the world and in all types ofenvironments. They are used in businesses, manufacturingenvironments, homes, government offices and non-profitorganizations.

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� Hardware - the physical components, both internal and external,that make up a computer.

� Operating System - a set of computer programs that managesthe hardware of a computer. An operating system controls theresources on a computer, including memory and disk storage.An example of an operating system is Windows XP.

Purpose and Uses of Personal Computers

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An example of an operating system is Windows XP.

� Application Software - programs loaded on the computer toperform a specific function using the capabilities of thecomputer. An example of application software is a wordprocessor or a computer game.

Purpose and Uses of Personal Computers

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Local and Network Applications

� Local application - A local application is a program, such as aword processor, that is stored on the hard disk of the computer.The application runs only on that computer.

� Network application - A network application is one that is

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designed to run over a network, such as the Internet. A networkapplication has two components, one that runs on the localcomputer and one that runs on a remote computer. Email is anexample of a network application.

Identify the Motherboard, CPU, RAM, Power Supply, and Case

� Hardware Components

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Motherboard

� Mainboard is a large circuit board used to connect theelectronics and circuitry Required which comprise thecomputer system.

� Mainboard contain connectors which allow major systemcomponents such as CPU , RAM ,HardDisk ,PowerSupply,CDRom/DVD.

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Supply,CDRom/DVD.

Motherboard Components

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CPU (Central Processing Unit)

� The CPU or Processor , is the nerve center of computer system.It is the component that processes all of the data.

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RAM (Random Access Memory)

� RAM use for store memory Temporary. Type RAM such as SDR RAM,DDR(DDR,DDR2,DDR3)

SDR RAM

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ROM (Red Only Memory)

� ROM use for store memory permanent. It have in BIOS.

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Power Supply

� Power Supply is used to deliver power to all devices. .

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Storage Devices

� Reads or writes information to magnetic or optical storage media.

� It have such as : Hard Disk DrivesFloppy Drives

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Floppy DrivesZip DrivesTape DrivesExternal Hard DiskFlash DriveCD/DVD

Adapter Cards

� Adapter cards add functionality to a computer system. They are designed to be plugged into a connector or slot on the mainboard. Adapter cards includes :

VGA Cards

Sound Cards

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Sound Cards

Network Interface Cards (Network Card)

Modem

Controller cards

Adapter Cards

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� There Portable devices very small in size, power and graphic include :

Notebook PC

Pocket PC

Portable Devices

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PDA (Personal Digital Assistant)

Gaming Device

Cell Phone

Portable Devices

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� Peripheral is a device that is added to the computer to expand its capabilities. It have such as printer, scanner, modem.

Peripheral Devices

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� Importance of UPS and Surge Protector.

Peripheral Devices

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Summary� Computers are used all over the world and in all types of

environments including: government, medical, education,manufacturing, legal and leisure.

� In order for most computers to perform useful functions,there are three things that have to work together: Hardware,Software and Operation Systems.

� An application can be classified as local or networked.

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� An application can be classified as local or networked.

� Things to consider when purchasing a computer:Motherboard, CPU, RAM, Adapter Cards, Storage,Peripherals, UPS, Surge Suppressors.

� There are many different types of Portable Devices availableincluding: Notebook PC, Pocket PC, PDA (Personal DigitalAssistant) ,Gaming Device and Cell Phone.