Computer Fundamentals – Computer Science Notes

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SYLLABUS CONTENT

Describe the functions and interactions of the main CPU components.




A1.1.1
The Central Processing Unit (CPU)
 The System Unit
 The Central Processing Unit (CPU)
 Registers
A1.1 COMPUTER FUNDAMENTALS




 Buses
 Cores

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The System Unit

 The system unit is the main case of a computer or
mobile device — it houses the processing hardware
for that device, as well as other components , such as
storage devices, the power supply, and cooling
hardware.
KEY TERM

system unit: the main case of a computer that houses
processing hardware
A1.1 COMPUTER FUNDAMENTALS




 A system unit usually contains one or more
processors , several types of memory , interfaces to
connect external peripheral devices (such as printers),
and other components all interconnected through
sets of wires called buses on the motherboard .
A1.1.1 The Central Processing Unit (CPU) ( p. 2-4)

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A1.1 COMPUTER FUNDAMENTALS




A1.1.1 The Central Processing Unit (CPU) ( p. 2-4)