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Program counter stores what?

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Program counter stores what?

(a) Address of before instruction

(b) Address of the next instruction

(c) Data of the before execution to be executed

(d) Data of the execution instruction

The question was asked during an internship interview.

This intriguing question originated from Microcontroller (8051) in chapter Prototyping Embedded Devices of IOT

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Best answer
Right answer is (b) Address of the next instruction

Best explanation: Points to the address of the next instruction to be executed from ROM. It is 16 bit register means the 8051 can access program address from 0000H to FFFFH. Total 64KB of code.

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