Which of the following register is employed to hold temporarily the right-hand…
2021
Which of the following register is employed to hold temporarily the right-hand instruction from a word in memory?
Answer: D. IBR — In computer architecture, the Instruction Buffer Register (IBR) is designed to hold the right-hand portion of a memory word in packed instruction systems. The…
- A.
Instruction Register (IR)
- B.
MAR
- C.
AC and MQ
- D.
IBR
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Correct answer: D
In computer architecture, the Instruction Buffer Register (IBR) is designed to hold the right-hand portion of a memory word in packed instruction systems. The Instruction Register (IR) typically stores the instruction currently being executed, often corresponding to the left-hand portion in split-word configurations.
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