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Computer Science Set-1
Computer Organization and Architecture
40

Computer Organization and Architecture MCQ with Answers

40) The ability to temporarily halt the CPU and use this time to send information on buses is called

Direct memory access

Vectoring the interrupt

System Interrupt

Cycle stealing

Answer is:

Cycle stealing

Computer Organization and Architecture MCQ with Answers

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Related 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

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

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