Exercise: Microprocessor Fundamentals

Questions for: Microprocessor Fundamentals

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: B
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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: C
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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: A
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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: B
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When was the first 8-bit microprocessor introduced?
A:
1969
B:
1974
C:
1979
D:
1985
Answer: B
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