Note computer hardware

suria_m / SMKBG '08suria_m / SMKBG '08

COMPUTER COMPUTER HARDWAREHARDWARE

Tuesday (29 th January 2008)


There are 4 types of There are 4 types of computer hardwarecomputer hardware

InputInput ProcessingProcessing

Output Output Storan Storan


Input hardwareInput hardware

Any machine that feeds data into Any machine that feeds data into a computer.a computer.


Examples of input Examples of input hardwarehardware

KeyboardKeyboard Camera digitalCamera digital

Mouse Mouse Joystick Joystick

Microphone Microphone ScannerScanner


Processing hardwareProcessing hardware It is in the system unit that the It is in the system unit that the computer program instructions are computer program instructions are

executed and data is manipulated. The executed and data is manipulated. The system unit includes the central system unit includes the central

processing unit (CPU), or processor, processing unit (CPU), or processor, and the main memory, among other and the main memory, among other

things. The CPU contains a control unit things. The CPU contains a control unit that executes the program instructions, that executes the program instructions,

and an arithmetic-logic unit (ALU) and an arithmetic-logic unit (ALU) which performs mathematic and logic which performs mathematic and logic operations including calculations such operations including calculations such as addition, subtraction, multiplication, as addition, subtraction, multiplication,

and division and division


Examples of processing Examples of processing hardwarehardware

Central processing unit (CPU)Central processing unit (CPU)


Output hardwareOutput hardware

Any machine that display Any machine that display information that has been held information that has been held

or generated within a computer or generated within a computer


Examples of output Examples of output hardwarehardware

Monitor Monitor Speaker / headphoneSpeaker / headphone

Dot-matrix printerDot-matrix printer Ink-Jet printerInk-Jet printer Laser printerLaser printer

LCD projectorLCD projector


Storan hardwareStoran hardware

A data storage device is a A data storage device is a device for recording (storing) device for recording (storing)

information (data). information (data).


Examples of storan Examples of storan hardwarehardware

Hardisk Hardisk Disket / 1.44 MB Floppy diskDisket / 1.44 MB Floppy disk

CD-R / CD-RWCD-R / CD-RW USB Mass storage USB Mass storage


POP QUIZ…POP QUIZ…


NAME THE DEVICES NAME THE DEVICES SHOWN…SHOWN…


















FINISH….FINISH….

Technology

Note computer hardware