SSC MTS EXAM

SSC

COMPUTER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Register:stores the most recently fetched instruction, waiting to be decoded.
A
Memory data register
B
Memory address register
C
Accumulator
D
Current instruction register
Explanation: 

Detailed explanation-1: -The instruction after obtained from the PC, is decoded and operands are fetched and stored in the IR(Instruction Register). Instruction register is a part of CPU’s control unit that holds the instruction currently being executed or decoded.

Detailed explanation-2: -current instruction register (CIR)-holds the instruction that is currently being decoded and executed.

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