COMPUTER SCIENCE AND ENGINEERING
COMPUTER ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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MAR
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MDR
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Accumulator
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Program Counter
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Detailed explanation-1: -The program counter, PC, is a special-purpose register that is used by the processor to hold the address of the next instruction to be executed.
Detailed explanation-2: -The correct answer is Program counter. Program Counter: A program counter (PC) is a CPU register in the computer processor which has the address of the next instruction to be executed from memory.
Detailed explanation-3: -In a computer, the memory address register (MAR) is the CPU register that either stores the memory address from which data will be fetched to the CPU registers, or the address to which data will be sent and stored via system bus.
Detailed explanation-4: -The memory address register (MAR) or address buffer also stores the address that references memory.
Detailed explanation-5: -The correct answer is Memory Buffer Register. Memory Buffer Register holds the contents of data or instruction read from, or written in memory.