Computer Organization Questions and Answers – Multiplication

This set of Computer Organization and Architecture Multiple Choice Questions & Answers (MCQs) focuses on “Multiplication”.

1. The product of 1101 & 1011 is ______
a) 10001111
b) 10101010
c) 11110000
d) 11001100

Explanation: The above operation is performed using binary multiplication.

2. We make use of ______ circuits to implement multiplication.
a) Flip flops
b) Combinatorial
d) None of the mentioned

3. The multiplier is stored in ______
a) PC Register
b) Shift register
c) Cache
d) None of the mentioned

Explanation: The value is stored in a shift register so that each bit can be accessed separately.

4. The ______ is used to coordinate the operation of the multiplier.
a) Controller
b) Coordinator
c) Control sequencer
d) None of the mentioned

Explanation: This performs the required sequencing of the various parts of the circuit.

5. The multiplicand and the control signals are passed through to the n-bit adder via _____
a) MUX
b) DEMUX
c) Encoder
d) Decoder

Explanation: None.
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6. The product of -13 & 11 is ______________
a) 1100110011
b) 1101110001
c) 1010101010
d) 1111111000

Explanation: None.

7. The method used to reduce the maximum number of summands by half is _______
a) Fast multiplication
b) Bit-pair recording
c) Quick multiplication
d) None of the mentioned

Explanation: It reduces the number of summands by concatenating them.

8. The bits 1 & 1 are recorded as _______ in bit-pair recording.
a) -1
b) 0
c) +1
d) both -1 and 0

Explanation: Its ‘-1’ when the previous bit is 0 and ‘0’ when the previous bit is 1.

9. The multiplier -6(11010) is recorded as _______
a) 0-1-2
b) 0-1+1-10
c) -2-10
d) None of the mentioned

Explanation: None.

10. CSA stands for?
c) Computer Service Architecture
d) None of the mentioned

Explanation: The CSA is used to speed up the addition of multiplicands.

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