Computer Organization & Architecture (3140707) MCQs

MCQs of Basic Computer Organization and Design

Showing 41 to 40 out of 50 Questions
2 3 4 5
41.
Boolean relation D7 I T3 is designated by which symbol?
(a) p
(b) q
(c) r
(d) s
Answer:

Option (a)

42.
The bits of AC used in Input-output instruction are?
(a) 0-15
(b) 0-7
(c) 7-15
(d) 0-10
Answer:

Option (b)

43.
ION and IOF instructions set and clear an interrupt enable flip-flop _____?
(a) INT
(b) IEN
(c) IEF
(d) IFF
Answer:

Option (b)

44.
When flip-flop R = 1, the computer goes through _______ cycle?
(a) Control
(b) Memory
(c) Instruction
(d) Interrupt
Answer:

Option (d)

45.
Along with executing instruction, which of the following flip-flop is first checked for interrupt status?
(a) FGI
(b) FGO
(c) IEN
(d) ION
Answer:

Option (c)

46.
In general, which instruction should be written at end of I/O program?
(a) 1 BUN 0
(b) 0 BUN 0
(c) 0 BUN 1
(d) 1 BUN 1
Answer:

Option (a)

47.
Full-form of ISR?
(a) Interrupt Service Routine
(b) Interrupt Set Reset
(c) Instruction Sub Routine
(d) Instruction Start Return
Answer:

Option (a)

48.
Which is proper method to SET bit "E" through instruction set?
(a) STE
(b) CME, CLE
(c) CLE, CME
(d) CLE, STE
Answer:

Option (c)

49.
Which register has not LD pin in common bus system?
(a) AR
(b) OUTR
(c) AC
(d) INPR
Answer:

Option (d)

50.
In Interrupt cycle, generally the return value should be stored in which location?
(a) PC + 1
(b) 0
(c) 1
(d) PC
Answer:

Option (b)

Showing 41 to 40 out of 50 Questions
2 3 4 5