Discussion
The primary task of registers during processing is to : (Choose the most appropriate option from below)
Answer: B
Registers store data, instructions and intermediate results.
Registers are tiny, very fast storage locations inside the CPU. While the processor works, they hold the instruction being executed, the data it is acting on, memory addresses and the intermediate results of calculations, so that the CPU does not have to go to slower main memory for every step.
Long-term data is kept in secondary storage such as a hard disk. Arithmetic operations are carried out by the ALU, which uses registers but is not itself a register. Directing data flow is the job of the control unit and the buses.
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