COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Address of program count
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Address of the next instruction to be fetched
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Program pointer
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IR pointer
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Detailed explanation-1: -The program counter contains the address of the next instruction to be fetched from the main memory when the previous instruction has been successfully completed. The program counter also functions to count the member instruction. As each instruction gets fetched, the program counter increases its stored value by 1.
Detailed explanation-2: -The program counter contains the address of the next instruction. The program counter is usually the same width (number of bits) as the address bus. It is quite common in computer systems to have more memory space than actual memory.
Detailed explanation-3: -The program counter (PC) is a special register that holds the memory address of the next instruction to be executed.
Detailed explanation-4: -Program counter (PC): The program counter acts as a pointer to the next instruction to be executed and always contains the 16-bit address of the memory location of the next instruction. It is a 16-bit register as 8085 has 16 address lines.