Digital Electronics - Microprocessor Fundamentals

Exercise :: Microprocessor Fundamentals - General Questions

11. 

When was the first 8-bit microprocessor introduced?

A. 1969
B. 1974
C. 1979
D. 1985

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

12. 

What type of circuit is used at the interface point of an output port?

A. decoder
B. latch
C. tristate buffer
D. none of the above

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

13. 

I/O mapped systems identify their input/output devices by giving them a(n) ________.

A. 8-bit port number
B. 16-bit port number
C. 8-bit buffer number
D. 8-bit instruction

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

14. 

What type of circuit is used at the interface point of an input port?

A. decoder
B. latch
C. tristate buffer
D. none of the above

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

15. 

The register in the 8085A that is used to keep track of the memory address of the next op-code to be run in the program is the:

A. stack pointer
B. program counter
C. instruction pointer
D. accumulator

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.