computer hardware
Post on 07-Jan-2016
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Computer Hardware
Computer Hardware
Unit 1Computer Applications A
Hardware defined
Physical parts of a computerFour main components of hardwareInput
devicesProcessing unitOutput devicesStorage devices
Input Devices
Transport data into the computerKeyboardMouseScannerDigital
cameraMicrophoneJoy stickGame controllerWeb camsLight pen
Processing Unit
Commonly known as CPU (central processing unit)The brain of the
computerContains computer chips and circuits that control and
manipulate data
Output devices
Allows the user to see or hear the information that the computer
compilesPrinterMonitorSpeakersHard driveFlash drives
Care of Computer and Peripherals
System case should be cleaned, inside and outWipe with a damp
clothUse compressed air to blow out dustUse a small handheld vacuum
to remove dustCheck the power supply fan periodically to be sure
that it has good ventilation and is free of dirt and dust
buildupTurn monitors off at night to increase life span
Care, cont.
Keyboards can develop keys that stickDevelop a no eating and
drinking policy at computerClean key caps every six monthsUse
compressed air to blow out dust from between keysMiceClean with
damp cloth monthly
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