51.

52.

53.

54.

55,

56.

57.

58.

59.

60.

123/2016
Numbers are represented in a computer in 2's complement because
A) Itrequires less storage
B) There is a unigue representation for zero

C) It produces less error when compared to other representations
D) None of the above

Which of the following is equivalent to the expression (A +B)-(A-B)-(A+B) ?
A) ‏ع‎ B)T C) A+B D) AB
Which of the following is an example of a combinational legic circuit ?

A) MUX B) Adder C) Counter D) Decoder
Which of the following ‏کا‎ an example of a synchronous interrupt ?

A) Keyboard interrupt B) Pushing the reset button

C) Divide by zero 0) Neone of the above

Which of the following is true ?

A) Every instruction will have atleast one machine cycle

B) The opcode of an instruction can never be one byte long

C) Every instruction has opcode fetch and memory read operation
D) None of the above

Matrix manipulation and sorting can be easily performed by which of the type of
computer ?

A) SISD B) MIMD C) MISD D) SIMD
Operand forwarding helps to overcome

A) Branch hazards B) Data hazards C) BothA)and B) D) None of the above

Which of the flags will be affected by the instruction INC AL, if AL = FFH 2

A) Zero, Carry 8) Zero, Auxiliary ஸோ, ۲۳۵۳۷ ۷
C) 2௦ ۷ D) Carry only

Which of the following methods is best suited for transferring 250 MB of data from

hard disk to memory ?

A) Polling B) DMA
C) Interrupt D) None of the above
Which of the following is not true for a microcontroller ?

A) Microcontrollers have special instructions for bit manipulation
B) They are commonly used in embedded systems

©) Microcontrollers with Harvard architecture are available

D) Microcontrollers cannot run without external memory

ഏം