COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Memory Address Register
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Memory Buffer Register
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Current Instruction Register
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Program Counter
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Detailed explanation-1: -Accumulator: This is the most frequently used register used to store data taken from memory. It holds the data on which the system has to operate. It is different in numbers in different microprocessors.
Detailed explanation-2: -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-3: -Memory data Register is the correct answer to the given question. Explanation: Memory data register is known as MDR .
Detailed explanation-4: -A processor typically contains multiple index registers, also known as address registers or registers of modification. The effective address of any entity in a computer includes the base, index, and relative addresses, all of which are stored in the index register. A shift register is another type.
Detailed explanation-5: -The register which stores the address of the next instruction is called the program counter.