Number System Questions

MCQ bookmark_border

1.

Computers use the _____ number system to store data and perform calculations.

A

Decimal

B

Hexadecimal

C

Octal

D

Binary

E

None of these

Correct Answer: D

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

2.

Instructions and memory address are represented by

A

Character code

B

Binary codes

C

Binary word

D

Partiy bit

E

None of these

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

3.

Which of the following is the 1's complement of 10?

A

1

B

110

C

11

D

10

E

None of the above

Correct Answer: A

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

4.

The binary system uses powers of

A

2

B

10

C

8

D

16

E

None of the above

Correct Answer: A

Binary representation, just because it only uses two digits has an interesting interpretation. Binary representation of a number is a sum of powers of 2. A power of two is included into the sum if the corresponding digit in the representation is 1.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

5.

Binary numbers need more places for counting because

A

They are always big numbers

B

Any no. of 0's can be added in front of them

C

Binary base is small

D

0's and l's have to be properly spaced apart

E

None of the above

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

6.

The radian of a number system

A

Is variable

B

Has nothing to do with digit position value

C

Equals the number of its distinct counting digits

D

Is always an even number

E

None of the above

Correct Answer: C

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

7.

The 2's complement of a binary no. is obtained by adding.....to its 1's complement.

B

1

C

10

D

12

E

None of the above

Correct Answer: B

None.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

8.

A number that is used to control the form of another number is known as

A

Map

B

Mask

C

Mamtossa

D

Marker

E

None of the above

Correct Answer: B

A number that is used to control the form of another number is known as mask.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

9.

A number which is stored and processed but not in the standard exponential form is called

A

Floating point number

B

Fixed point number

C

Octal number

D

Decimal number

E

None of the above

Correct Answer: B

In computing, a fixed-point number representation is a real data type for a number that has a fixed number of digits after the radix point. Fixed-point number representation can be compared to the more complicated floating-point number representation.

Check Answer report_problem Report forum Discussion

MCQ bookmark_border

10.

Binary numbers need more places for counting because:

A

0's and 1's can be added in front of them

B

0's and 1's have to be properly placed

C

They are always big numbers

D

Binary base is small

E

None of the above

Correct Answer: D

Binary number. In mathematics and digital electronics, a binary number is a number expressed in the base-2 numeral system or binary numeral system, which uses only two symbols: typically 0 (zero) and 1 (one) and two. They also call it base 2. The base-2 numeral system is a positional notation with a radix of 2.

Check Answer report_problem Report forum Discussion