Computer Organization & Architecture (3140707) MCQs

MCQs of Computer Data Representation

Showing 21 to 30 out of 50 Questions
1 2 3 4 5
21.
Which logic component is used to design 4-bit binary incrementer?
(a) BCD adder
(b) Full subtractor
(c) Full adder
(d) Half adder
Answer:

Option (d)

22.
IF S1 = 1, S0 = 0, Cin = 0 in arithmetic circuit, then which microoperation is performed?
(a) Increment A
(b) Decrement A
(c) Transfer A
(d) Add
Answer:

Option (c)

23.
For microoperation "Subtract with borrow" in arithmetic circuit, value of S1 S0 Cin should be?
(a) 010
(b) 110
(c) 001
(d) 101
Answer:

Option (a)

24.
If R1 = 1010 and R2 = 0110, then result of R1 - R2 is?
(a) 0010
(b) 0100
(c) 1000
(d) 0011
Answer:

Option (b)

25.
Which of the following logic operation is not performed in logic circuit?
(a) XNOR
(b) AND
(c) OR
(d) Complement
Answer:

Option (a)

26.
Which microoperation can be used to selectively set bits of a register?
(a) NAND
(b) XOR
(c) AND
(d) OR
Answer:

Option (d)

27.
XOR microoperation can be used for?
(a) Selective-set
(b) Selective-clear
(c) Selective-complement
(d) Mask
Answer:

Option (c)

28.
If A = 1010 and B = 1100, then content of A after performing mask operation on A using operand B is?
(a) 0100
(b) 1001
(c) 1000
(d) 0000
Answer:

Option (c)

29.
Which bit is transferred at LSB position in SHL operation?
(a) MSB
(b) 0
(c) LSB
(d) 1
Answer:

Option (b)

30.
Which of the following shift operation is known as rotate operation?
(a) Circular Shift
(b) Logical Shift
(c) Arithmetic Shift
(d) None
Answer:

Option (a)

Showing 21 to 30 out of 50 Questions
1 2 3 4 5