COMPUTER FUNDAMENTALS

COMPUTER SOFTWARE

SYSTEM SOFTWARE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Stores the results of calculations made by the ALU.
A
Program Counter
B
Memory data register
C
Accumulator
D
Current Instruction register
Explanation: 

Detailed explanation-1: -Accumulator (ACC): Stores the results of calculations made by ALU. Program Counter (PC): Keeps track of the memory location of the next instructions to be dealt with. The PC then passes this next address to Memory Address Register (MAR).

Detailed explanation-2: -It holds data or the results of an operation during the processing cycles. The accumulator can hold one of the two operands during any ALU operation. If we want to add two bytes together, this would just be an example here; one byte would go to the accumulator, and the other in memory or general purpose register.

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