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The Component of system unit by Mind Map: The Component of system
unit
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The Component of system unit

System unit

mother board

computer chip

processor (CPU)

ALU

comparision

control unit

directs and coordination

machine cycle

1.FETCH

2.DECODE

3.EXCECUTE

4.STROE

Leading of chip

AMD

INTEL

Saving

Heat sinks

Liquid cooling technology

Data Representation

Analog

signals are continuous

Digital

signals are two states, on, off

Binary system

8 bits for 1 bytes

ASCLL code for symbol

Memory

volatile

loses its contents when turned off, RAM

Non-volatile

Do not loses its contents when turned off, ROM, permanent, firm ware, can erased, EEPROM, can written and erased, flash

slots

with plug and play cards

auto install

Removeable flash

Mem card

pc card

usb flash drives

port and connectors

usb port

bluetooth wrieless port

ect.

Buses

allows the various attached to system unit

word size

Bay

opening

can additional equipment

Power supply

converts ac to dc