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