TOPIC 2: COMPUTER HARDWARE MOHD YUNUS SHARUM (DR.) NORIDAYU MANSHOR (DR.) Faculty of Computer Science and Information Technology Universiti Putra Malaysia
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Computer Hardware Explains about the computer hardware and general components
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Computer Hardware Central Processing Unit
Memory Unit Internal hardware
Internal hardware
Computer Hardware
External hardware
Storage
External hardware
Input
Output
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Central Processing Unit Control Unit - Direct and coordinate all operations in a computer
Arithmetic Logic Unit - Perform arithmetic ,logical and comparison operation Component
Central Processing Unit ASCII
Fetch
UNICODE EBCDIC
Store
Decode Execute
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Memory Non Volatile Memory Volatile Memory
ROM, flash memory, CMOS
RAM : DRAM and SRAM Types
Memory
Access time is the amount of time it takes the processor to read from memory
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Input Devices Gaming and multimedia
Ergonomic
Pointing devices
Keyboard
Laptop
Thumb size
- trackball, pointing stick, touch pad…
Virtual
Input Devices
Reading devices
-verify personal
Audio/Video Input
characteristics, check processing, read barcode
Motion input gesture recognition, using air gestures …
Scanner Flatbed, drum, sheetfed, pen/handheld scanner…
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Output Devices Impact printer - Dot matrix, line printer
Monitor/ Display devices
Printer
Output Devices
Force feedback devices
Non-Impact -laser ,thermal, label, ink-jet printer
Audio and Video
Joysticks, wheels, gamepads, and motion-sensing game controllers.
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Storage devices Removable
Microfilm, Microfiche, Tape,
External
Hard Disks Longitudinal
Magnetic stripe cards and smart cards
How store?
perpendicular
Storage Devices Blu-Ray
Flash Memory
Solid State Drive
Optical Discs
USB flash
Memory card
CD-ROM/ DVD-ROM
CD-R,CD-RW/ DVD-RW
Cloud Storage - is an Internet service that provides storage to computer users
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