Computer Organization & Architecture (3140707) MCQs

MCQs of Central Processing Unit

Showing 41 to 50 out of 55 Questions
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41.
Which instruction cannot perform bit manipulation operations?
(a) COM
(b) OR
(c) AND
(d) XOR
Answer:

Option (a)

42.
Instruction TST comes under which category of instruction?
(a) Data transfer
(b) Data manipulation
(c) Program control
(d) None of above
Answer:

Option (c)

43.
Register R has hexadecimal 71. Add immediate operand C6 to R. Determine the values of status bits S & V?
(a) 1, 1
(b) 0, 0
(c) 1, 0
(d) 0, 1
Answer:

Option (d)

44.
Which logical operation is generally used to check whether two numbers are equal or not (with help of Z status bit)?
(a) AND
(b) XOR
(c) OR
(d) COM
Answer:

Option (b)

45.
The status bit V is obtained by x-oring between __ and __ status bits.
(a) Z, S
(b) Z, C
(c) S, C
(d) None of above
Answer:

Option (c)

46.
Full-form of PSW?
(a) Program Status Word
(b) Priority Service Window
(c) Program Service Wait
(d) Priority Status Wait
Answer:

Option (a)

47.
Which of the following is not an example of internal interrupt?
(a) Attempt to divide by zero
(b) Register overflow
(c) Invalid operation code
(d) Elapsed time of an event
Answer:

Option (d)

48.
Which interrupt is also called as trap?
(a) External
(b) Internal
(c) Software
(d) Hardware
Answer:

Option (b)

49.
Full-form of RISC?
(a) Reduced Instruction Set Computer
(b) Reduced Instruction Set Completeness
(c) Reduced Interrupt Set Completeness
(d) None of above
Answer:

Option (a)

50.
Which of the following is not of RISC's characteristic?
(a) Relatively few instruction
(b) Single-cycle instruction execution
(c) Variable-length instruction formats
(d) All are RISC's characteristics
Answer:

Option (c)

Showing 41 to 50 out of 55 Questions
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