computer hardware basic # 3

8/11/2019 Computer Hardware Basic # 3

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The physical devices that make

up the computer are called

hardware

computers hardware consists

of interconnected electronic

devices

Computer hardware illustration

Next slide


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IntroductiontoComputer

HardwareBasics


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Tape DriveMass Data Backup5 1/4 and 3 1/2FloppyRemovableMedia

CD-ROM/DVD-ROMCDRW/DVD-R

Hard Drive Light

On means working

Blinking means busy

Power Light

On/Green

Amber/Standby

USB Ports

For Media readers/Cameras/Scanners

Build in Media readers (CF, SD cards)

Air Vents


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A

B

C

D

E F


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CPUPCI Slots

RAM

Hard Disc

Power


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Two major venders

X2, X3, X4, DualCore, Quad Core ?


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Older Computers P4s DDR

Current Computers DDR2

New Computers (2009-2010) DDR3


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Internal External

Runs the Computer OSGreat for storage


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ATI

&Nvidia


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DVI (

igital Visual Interface

)

VGA

HDMI


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VS.VS.

CRT = Faster refresh rate, better viewing angle, betterbrightness/contrast, more resolutions, cheaper (Heavy, Bulky,use more power, radiation)

LCD = Lighter, Use less power, Digital Input (poor viewing angle,Fixed resolution, more $$$) 16x9 ratio or 16x10 ratio ------ (19Minimum)

LCD TV = Bigger screen, cheaper than normal LCD of same size,

Wide Screen, Digital input, Save more space(lower resolutionfor computing)


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Impact Printers (dot-matrix)

Inkjet

(all in one function - Scan, Copy,

Print)

Photo quality

Prints photos 4x6 to 8x10

Cheap Printer, expensive ink (new

printer every time)

Refilling kits from 3rd

party / Local Stores

Laser

Mostly Black/White

Overall best value for text printing


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USB Cable to hook up to Computer

Networked is better if you have 2 or more

computers

Use Ink Refill stations


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Touchpad = Mouse

Left Click / RightClick

Left Click / Right Click


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Windows XP, Windows Vista

Plug in the new the Keyboard, Mice (wired

or wireless)

Turn on the Computer

Wait for Windows to Boot

Wait for Windows to Install Drivers (1-2

minutes)

Start using the Keyboard Mice


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Recognize the main

components and

understand their

basic function.

Understand that there

are different types of

components.

Get familiar with how

the components are

installed.

Understand common

hardware problems.


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Protect yourself

Power off

One hand rule

Dont open a

monitor

Protect the

equipment

Power off

Grounding strap


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Motherboard overview

Hard drive/CD/DVD

NIC/expansion cards

Memory

Put It Back Together


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Be able to use basic operating system

utilities to monitor system functions and

identify software related problems.

Be able to install a desktop operating

system and perform basic configuration

functions.

Be able to obtain and install software

updates and patches.


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Whats the first step in

troubleshooting?


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Isolate the

problem

Document

Application

Operating system


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Try opening a backup copy

Try opening on another machine

Try opening with a different version of the

program


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Try another document

Uninstall any new items

Apply vendor updates


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Try a different application

Check disk drive space

Use scan disk and defrag for maintenance

Try a Windows troubleshooting wizard

Apply vendor updates


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Install Windows

Work with drivers as required

Find Windows update

Download and install Adobe Acrobat

Uninstall Adobe Acrobat


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Be able to properly

connect a printer.

Be able to install

print driver software.

Be able to access and

understand the

windows tools used

for print

troubleshooting.

Be able to perform

basic troubleshooting

of network printing.


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Install a new printer

Get correct cable and driver

Troubleshoot printing

Start at printer and use process of

elimination.

Network printing

Things to look for


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Identify and solve

basic networking

problems.

Differentiate between

problems with a

single machine and

the entire network.

Identify the reasons

for common internet

error messages.

Find and use

windows utilities

helpful in identifying

network problems.


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Internet Problems

Bad URL

Server down

Missing or old plug-in

Network Problems

Cable

Software/client

Server

computer hardware basic # 3

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