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The Components of the System Unit by Mind Map: The Components of the
System Unit
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The Components of the System Unit

The system unit

Insides

Drive bays

Power supply

Sound card

Video card

Processor

Memory

The motherboard

A computer chip

Processor

control unit

arithmetic logic unit

system clock

clock speed

Data Representation

binary system

Bits and bytes

ASCII (American Standard Code for Information Interchange)

Memory

kilobytes (KB or K), megabytes (MB), gigabytes (GB), or terabytes (TB)

memory module

memory slots

Memory cache

Read‐only memory (ROM)

Flash memory

CMOS

Access time

nanoseconds

Expansion Slots and Adapter Cards

expansion slot

adapter card

Sound card and video card

Plug and Play

Memory cards, USB flash drives, and PC Cards/ExpressCard modules

Ports and Connectors

A port is the point at which a peripheral attaches to or communicates with a system unit (sometimes referred to as a jack)

A connector joins a cable to a port

USB port

USB hub

Buses

bus

Data bus

Address bus

Word size

Bays

bay

drive bay

Power Supply

AC adapter

Putting It All Together

Home

Small Office/ Home Office

Mobile

Power

Enterprise

Keeping Your Computer or Mobile Device Clean

Video: The Leopard with a Time Machine