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WorksheetsCPU 1
Total questions: 17
Worksheet time: 9mins
The CPU is the (a) of the computer.
Inside the CPU, you will find:
ALU, CU, registers, cache memory
ADU, PC, storage, RAM memory
ARM, PC, controller, cache memory
APM, CU, time signal, RAM memory
The ALU....
does any maths or logic problems for the CPU
stores data inside the CPU
sends out control signals for the CPU
holds specific data for the fetch-decode-execute cycle
The CU...
does any maths or logic problems for the CPU
stores data inside the CPU
sends out control signals for the CPU
holds specific data for the fetch-decode-execute cycle
The MAR stores the (a) of data which is either being sent to or fetched from the RAM.
The MDR holds the (a) which is being sent to/fetched from the address in the MAR.
The processor…
Carries out instructions
Is main memory
Is secondary storage
Is an input device
This temporary store of data will lose all contents when power is lost.
RAM
ROM
