📖 Tier 1: Prepare & Study Guide
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Computer Solved Questions Bank & Study Material (2026) - Apex Rankers
General Competitive Exams | Topic-Wise Comprehensive Solved Pool
33 Total Solved Questions
~50 mins Estimated Reading Time
6 Subject Areas / Chapters
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Instructions / Reading Passage
8 Questions in this set
Select the best option for the following General Computer and Number System questions (filling the gap between PowerPoint batches):
Q. 1
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
A computer can be defined as an electronic device that:
A
Processes data
B
Stores information
C
(a) and (b)
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Computers are essentially data processing and storage machines.
Q. 2
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Hardware represents:
A
Physical parts
✓ Correct
B
Operating system
C
Programs
D
Data
💡
Step-by-Step Explanation & Concept Rationale
Hardware consists of the tangible, physical components of a computer system.
Q. 3
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Software refers to:
A
Physical parts
B
Set of instructions
✓ Correct
C
Keyboard
D
Mouse
💡
Step-by-Step Explanation & Concept Rationale
Software is the collection of programs and instructions that tell hardware what to do.
Q. 4
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Which is NOT a characteristic of a computer?
A
Speed
B
Accuracy
C
Diligence
D
Feelings
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
A computer is a machine. It lacks human qualities such as feelings, emotions, instincts, and independent intelligence quotient (IQ). It can only execute commands based on pre-programmed instructions.
Q. 5
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Desktop and personal computers are also called:
A
Mainframe
B
Supercomputers
C
Microcomputers
✓ Correct
D
(b) and (c)
💡
Step-by-Step Explanation & Concept Rationale
Microcomputers are designed for individual use, typically as desktops or laptops.
Q. 6
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Which is not a computer classification?
A
Mainframe
B
Minicomputer
C
Laptop
D
Maxicomputer
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
"Maxicomputer" is not a standard industry term for computer classification.
Q. 7
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
A collection of raw facts and figure is called:
A
Data
✓ Correct
B
Information
C
Processing
D
Output
💡
Step-by-Step Explanation & Concept Rationale
Data refers to unorganized facts that have not yet been processed.
Q. 8
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The data after the processing is called:
A
Output data
B
Information
✓ Correct
C
Sample data
D
None of these
💡
Step-by-Step Explanation & Concept Rationale
Information is the organized or classified data which has some meaningful value.
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Instructions / Reading Passage
3 Questions in this set
Select the best option for the following General Computer and Number System questions (filling the gap between PowerPoint batches):
Q. 1
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Which of the following is data type?
A
Numeric
B
Alphabetic
C
Alphanumeric
D
All-of-these
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Computer data can be comprised of numbers, letters, or a combination of both.
Q. 2
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Data type used to represent names of students?
A
Numeric data
B
Alphabetic data
✓ Correct
C
Alphanumeric
D
(a) and (b)
💡
Step-by-Step Explanation & Concept Rationale
Names primarily consist of letters, making them alphabetic data.
Q. 3
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The number of bits in a nibble is:
A
16
B
5
C
4
✓ Correct
D
8
💡
Step-by-Step Explanation & Concept Rationale
A nibble is half of an 8-bit byte, consisting of 4 bits.
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1 Question in this set
Select the best option for the following General Computer and Number System questions (filling the gap between PowerPoint batches):
Q. 1
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Transistors had all the following advantage over vacuum tubes:
A
Smaller size
B
Greater speed
C
Less heat generation
D
All of the above
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
Transistors revolutionized computing by being more efficient and compact than vacuum tubes.
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1 Question in this set
Select the best option for the following General Computer and Number System questions (filling the gap between PowerPoint batches):
Q. 1
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Which was the first general purpose computer?
A
ENIAC
✓ Correct
B
EDVAC
C
EDSAC
D
UNIVAC
💡
Step-by-Step Explanation & Concept Rationale
ENIAC was the first programmable, electronic, general-purpose digital computer.
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4 Questions in this set
Select the best option for the following General Computer and Number System questions (filling the gap between PowerPoint batches):
Q. 1
Computer Aptitude Test
Difficulty: Hard
(1 Mark)
Numbers stored and transmitted inside a computer in:
A
Binary form
✓ Correct
B
Decimal form
C
Alphanumeric
D
None of these
💡
Step-by-Step Explanation & Concept Rationale
Computers operate using binary logic (0s and 1s) at the machine level.
Q. 2
Computer Aptitude Test
Difficulty: Hard
(1 Mark)
The two binary digits are frequently referred to as:
A
Bit
✓ Correct
B
Byte
C
Transistors
D
None of these
💡
Step-by-Step Explanation & Concept Rationale
A "bit" (binary digit) is the smallest unit of data in a computer.
Q. 3
Computer Aptitude Test
Difficulty: Hard
(1 Mark)
The 1's complement of 10011101 is:
A
1100010
✓ Correct
B
10011110
C
1100001
D
1100011
💡
Step-by-Step Explanation & Concept Rationale
1's complement is found by flipping every bit (0 to 1 and 1 to 0).
Q. 4
Computer Aptitude Test
Difficulty: Hard
(1 Mark)
MSB stands for:
A
Middle sum byte
B
Maximum single bit
C
Minimum single bit
D
Most significant bit
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
The MSB is the bit position in a binary number having the greatest value.
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Instructions / Reading Passage
16 Questions in this set
Select the best option for the following General Computer and Number System questions (filling the gap between PowerPoint batches):
Q. 1
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The base of decimal number system is:
A
10
✓ Correct
B
2
C
8
D
16
💡
Step-by-Step Explanation & Concept Rationale
The decimal system is base-10, using digits 0 through 9.
Q. 2
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The base of binary number system is:
A
16
B
2
✓ Correct
C
8
D
10
💡
Step-by-Step Explanation & Concept Rationale
The binary system is base-2, using only the digits 0 and 1.
Q. 3
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The base of octal number system is:
A
10
B
2
C
8
✓ Correct
D
16
💡
Step-by-Step Explanation & Concept Rationale
The octal system is base-8, using digits 0 through 7.
Q. 4
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The base of hexadecimal number system is:
A
16
✓ Correct
B
2
C
8
D
10
💡
Step-by-Step Explanation & Concept Rationale
Hexadecimal is base-16, using 0–9 and letters A–F.
Q. 5
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The number of digits in octal system:
A
8
✓ Correct
B
7
C
10
D
16
💡
Step-by-Step Explanation & Concept Rationale
There are eight distinct digits (0–7) in the octal numbering system.
Q. 6
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The number of digits in decimal system is:
A
8
B
7
C
10
✓ Correct
D
16
💡
Step-by-Step Explanation & Concept Rationale
The decimal system contains ten unique digits from zero to nine.
Q. 7
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The number of digits in Hexadecimal system is:
A
15
B
17
C
16
✓ Correct
D
8
💡
Step-by-Step Explanation & Concept Rationale
Hexadecimal uses sixteen symbols: 0–9 followed by A–F.
Q. 8
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Hexadecimal 'F' is equivalent to _______ in decimal:
A
16
B
15
✓ Correct
C
17
D
8
💡
Step-by-Step Explanation & Concept Rationale
In hex, A=10, B=11, C=12, D=13, E=14, and F=15.
Q. 9
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
In hexadecimal number system, A is equal to decimal:
A
10
✓ Correct
B
11
C
17
D
18
💡
Step-by-Step Explanation & Concept Rationale
The letter 'A' represents the tenth value (decimal 10) in base-16.
Q. 10
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
In hexadecimal number system, B is equal to decimal:
A
10
B
11
✓ Correct
C
17
D
8
💡
Step-by-Step Explanation & Concept Rationale
The letter 'B' represents the eleventh value in the hexadecimal system.
Q. 11
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
In hexadecimal number system, C is equal to decimal:
A
10
B
11
C
12
✓ Correct
D
8
💡
Step-by-Step Explanation & Concept Rationale
'C' corresponds to the decimal value 12 in base-16 logic.
Q. 12
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
What is the decimal value of 2³?
A
2
B
4
C
6
D
8
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
2 to the power of 3 is 2 × 2 × 2, which equals 8.
Q. 13
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
What is the decimal value of 2⁻¹ is equal to:
A
0.5
✓ Correct
B
0.25
C
0.05
D
0.1
💡
Step-by-Step Explanation & Concept Rationale
A negative exponent indicates a reciprocal; 2⁻¹ is 1/2, or 0.5.
Q. 14
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The decimal number 18 is equal to the binary number:
A
11110
B
10001
C
10010
✓ Correct
D
1111000
💡
Step-by-Step Explanation & Concept Rationale
18 in binary is 16 + 2, represented as 10010.
Q. 15
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
The difference of 111 - 001 equals:
A
100
B
111
C
True
D
110
✓ Correct
💡
Step-by-Step Explanation & Concept Rationale
In binary subtraction, 7 (111) minus 1 (001) equals 6 (110).
Q. 16
Computer Aptitude Test
Difficulty: Medium
(1 Mark)
Binary multiplication 1 * 0 =
A
True
B
False
C
10
✓ Correct
D
11
💡
Step-by-Step Explanation & Concept Rationale
Like decimal math, any binary digit multiplied by zero results in zero.
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