INTRODUCTION TO COMPUTERS
COMPUTER ARCHITECTURE AND ORGANIZATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A register that keeps track of the next instruction to be executed is called a ____
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Program Counter
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Instruction Register
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Accumulator
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Data Register
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Explanation:
Detailed explanation-1: -The register which keeps track of the execution of a program and which contains the memory address of the instruction currently being executed is known as Program counter. 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-2: -The program counter (PC) is a register that manages the memory address of the instruction to be executed next. The address specified by the PC will be + n (+1 for a 1-word instruction and +2 for a 2-word instruction) each time one instruction is executed.
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