Q. Three main parts of a processor are:

A
ALU, Control Unit and Register
B
ALU, Control Unit and RAM
C
Cache, Control Unit and ALU
D
Control Unit, Register and RAM
Solution:

-Control Unit this part controls the input and output devices
-Arithmetic Logic Unit this is the part that does all the working out: it does all the maths and makes the decisions
-Immediate Access Store this is the memory available for programmes and data.

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