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Computer Science Set-1
Computer Organization and Architecture
41

Computer Organization and Architecture MCQ with Answers

41) Number of machine cycles required for RET instruction in 8085 microprocessor is

1

2

3

None of these

Answer is:

3

Computer Organization and Architecture MCQ with Answers

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Related Computer Organization and Architecture MCQ with Answers

42) In a microprocessor system, the RST instruction will cause an interrupt

only if an interrupt service routine is being executed

only if a bit in the interrupt mask is made 0

only if interrupts have been enabled by an EI instruction

none of these

Answer is:

only if interrupts have been enabled by an EI instruction

43) An instruction used to set the carry flag in a computer can be classified as

Data transfer

Process control

Logical

None of these

Answer is:

Process control

44) Microprocessor 8085 is the enhanced version of _____ with essentially the same construction set

6800

68000

8080

8088

Answer is:

8080

45) In a generic microprocessor instruction cycle time is

Shorter than machine cycle time

Larger than machine cycle time

Ten times the machine cycle time

Exactly the same as the machine cycle time

Answer is:

Exactly the same as the machine cycle time

Computer Organization and Architecture MCQ with Answers

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