Discussion
The Program Counter is a :
Answer: A
The Program Counter is a 16-bit up counter with parallel load.
In an 8-bit microprocessor such as the 8085, the PC holds the 16-bit address of the next instruction byte. After each byte is fetched it is incremented, so it counts up; and when a jump, call or return occurs, a new address is loaded into it all at once, which requires a parallel load.
It is 16 bits wide to address 64 KB of memory, not 8 bits. It never counts down, and it is not a shift register, since addresses are not shifted bit by bit.
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