MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER ARCHITECTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Program Counter
A
Stores the address of the next instruction in memory
B
Stores the address of where the next item will be fetched from
C
Stores data fetched from memory, or waiting to be stored in memory
D
Stores the result of arithmetic calculations
Explanation: 

Detailed explanation-1: -The register which stores the address of the next instruction is called the program counter. Usually after each instruction is executed, the program counter increases by one (hence the use of the word counter) so that it contains the address of the next instruction.

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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