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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

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The system unit

Drive bay(s)

Power supply

The power supply converts the wall  outlet AC power into DC power

Some external peripherals have an AC  adapter, which is an external power  supply

Sound card

Video card

Memory

Processor

Memory

The operating  system and other  system software

Volatile memory, Loses its contents when  power is turned off, Example includes RAM

Application  programs

Data being  processed and the resulting  information

Nonvolatile memory, Does not lose contents  when power is removed, New node

Data Representation

Analog

signals are continuous and vary in  strength and quality

Digital

signals are in one of two states: on  or off

Processor

Multi‐core  processor

control unit

Dual‐core  processor

arithmetic logic unit

Quad‐core  processor

system clock

Expansion Slots and Adapter Cards

An expansion slot is a  socket on the motherboard  that can hold an adapter  card

An adapter card enhances  functions of a component of  the system unit and/or  provides connections to  peripherals

ound card and video card

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

Summary

Components of the  system unit

How memory stores  data, instructions, and information

Sequence of operations  that occur when a  computer executes an  instruction

Comparison of various  personal computer  processors on the  market today

How to clean the  exterior and interior of a system unit