This set of Computer Fundamentals Multiple Choice Questions & Answers (MCQs) focuses on “Binary Multiplication & Division”.

1. Perform binary addition of 1101 + 0010 is ________

a) 1110

b) 1111

c) 0111

d) 1,1101

View Answer

Explanation: The addition is performed as :

1101

+ 0010

_______

1111

Therefore, the result is 1111.

2. The addition 1+1 gives 0 as a result.

a) True

b) False

View Answer

Explanation: The two result obtained is 0 with a carry of 1. This carry is transferred to the next higher column.

3. The result of 0*1 in binary is ____________

a) 0

b) 1

c) invalid

d) 10

View Answer

Explanation: The binary multiplication of any number with 0 will give the result 0 itself. Any binary number when multiplied by 0 gives 0 only. e.g. 1101 * 0000 = 0000.

4. The multiplication of 110 * 111 is performed. What is a general term used for 111?

a) Dividend

b) Quotient

c) Multiplicand

d) Multiplier

View Answer

Explanation: 111 is called the multiplier.

Whenever a multiplication is performed the second term is called the multiplier whereas the first term is called the multiplicand.

5. The result obtained on binary multiplication of 1010 * 1100 is _____________

a) 0001111

b) 0011111

c) 1111100

d) 1111000

View Answer

Explanation: The solution is as follows :

1010 * 1100 ________ 0000 0000 1010 1010 _______ 1111000

6. Which of the following is often called the double precision format?

a) 64-bit

b) 8-bit

c) 32-bit

d) 128-bit

View Answer

Explanation: The 64-bit format is referred to as the double precision format. It has 1 sign bit, 8 exponent bits and 23 bits for the mantissa.

7. What do you call the intermediate terms in binary multiplication?

a) Multipliers

b) Mid terms

c) Partial Products

d) Multiplicands

View Answer

Explanation: The intermediate terms are called partial terms. The mid terms obtained in the binary multiplications are the partial ones whereas the answer obtained is called the final product.

8. The result that is smaller than the smallest number obtained is referred to as ___________

a) NaN

b) Underflow

c) Smallest

d) Mantissa

View Answer

Explanation: It is referred to as underflow. Nan stands for not a number. Mantissa is the part after the decimal.

9. The number of sign bits in a 32-bit IEEE format is _______

a) 1

b) 11

c) 9

d) 23

View Answer

Explanation: There is only 1 sign bit in all the standards. In a 32-bit format, there is 1 sign bit, 8 bits for the exponent and 23 bits for the mantissa.

10. Express the decimal format of the signed binary number (101010)^{2} .

a) 10

b) 12

c) -12

d) -10

View Answer

Explanation: The first bit is the sign bit whereas the rest of the bits are magnitude bits. So the number is: 01010 =2

^{3}* 1 + 2

^{1}* 1 =8+2 =10.

But , the sign bit is 1,

Therefore the answer is : (-2)

^{10}.

**Sanfoundry Global Education & Learning Series – Computer Fundamentals.**

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