COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Accumulator
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Memory Address Register
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Memory Data Register
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Program Counter
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Detailed explanation-1: -The CPU also contains registers in the Integer Unit which can be read from and written to. They are called general purpose registers. The CPU contains a number of special purpose registers; the most important of these is called the program counter. The program counter contains the address of the next instruction.
Detailed explanation-2: -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-3: -A program counter is a register in a computer processor that contains the address (location) of the instruction being executed at the current time.
Detailed explanation-4: -In computing, the instruction register (IR) or current instruction register (CIR) is the part of a CPU’s control unit that holds the instruction currently being executed or decoded.