Explore topic-wise MCQs in Computer Fundamentals.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Fundamentals knowledge and support exam preparation. Choose a topic below to get started.

1.

The Excess-3 representation of (0100)BCD is __________

A. 0110
B. 1110
C. 0111
D. 1100
Answer» D. 1100
Discussion
2.

The 10’s complement of 455 is _________

A. 543
B. 544
C. 545
D. 546
Answer» D. 546
Discussion
3.

The 9’s complement of 45 is _____________

A. 45
B. 54
C. 64
D. 46
Answer» C. 64
Discussion
4.

Write the decimal equivalent for (110001)BCD.

A. 31
B. 13
C. C1
D. 1C
Answer» B. 13
Discussion
5.

Perform BCD addition of (23)BCD + (20)BCD .

A. 00110100
B. 01000011
C. 10011
D. 11100
Answer» C. 10011
Discussion
6.

The BCD representation of (34)10 is _______________

A. 6
B. 7
C. 8
D. 5
Answer» C. 8
Discussion
7.

THE_10‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_COMPLEMENT_OF_455_IS__________?$#

A. 543
B. 544
C. 545
D. 546
Answer» D. 546
Discussion
8.

The_Excess-3_representation_of_(0100)BCD_is___________$

A. 0110
B. 1110
C. 0111
D. 1100
Answer» D. 1100
Discussion
9.

The 9’s complement of 45 is ____________?#

A. 45
B. 54
C. 64
D. 46
Answer» C. 64
Discussion
10.

Write the decimal equivalent for (110001)BCD.

A. 31
B. 13
C. C1
D. 1C
Answer» B. 13
Discussion
11.

The weights used in Binary coded decimal code are:

A. 4,2,1
B. 8,4,2,1
C. 6,4,2,1
D. 2,1
Answer» C. 6,4,2,1
Discussion
12.

Perform BCD addition of (23)BCD + (20)BCD .

A. 00110100
B. 01000011
C. 10011
D. 11100
Answer» C. 10011
Discussion
13.

The BCD representation of (34)10 is _______________

A. 6
B. 7
C. 8
D. 5
Answer» C. 8
Discussion
14.

Which of the following is not a type of computer code?

A. EBCDIC
B. BCD
C. ASCII
D. EDIC
Answer» E.
Discussion
15.

BCD uses 6 bits to represent a symbol.

A. True
B. False
Answer» B. False
Discussion
16.

A group of bits used to represent a symbol is called a ____________

A. byte
B. memory
C. nibble
D. code
Answer» B. memory
Discussion