Computer Fundamentals MCQs

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Computer Fundamentals MCQs

Practice Computer Fundamentals MCQs with answers and detailed explanations covering computer basics, characteristics, types of computers, generations of computers and fundamental concepts frequently asked in SSC, Railway, Banking, UPSC, JKSSB and other competitive exams.

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Total Questions

Practice Questions

Page 11 of 17
Question #201
What does 'MIPS' stand for?
A. Million Instructions Per Second
B. Memory Instructions Per Second
C. Micro Instructions Per Second
D. Million Inputs Per Second
Discuss
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Correct Answer: Option A

Explanation:
MIPS is a measure of a computer's processor speed, indicating millions of instructions executed per second.
This question belongs to: Computer Computer Fundamentals
Question #202
Which generation introduced the concept of time-sharing?
A. Fourth
B. First
C. Second
D. Third
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Correct Answer: Option D

Explanation:
Third-generation computers introduced time-sharing operating systems, allowing multiple users to interact simultaneously.
This question belongs to: Computer Computer Fundamentals
Question #203
What is the primary purpose of an output device?
A. To process data
B. To store data
C. To display or present processed data
D. To enter data
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Correct Answer: Option C

Explanation:
Output devices present the results of processed data to the user, e.g., monitor, printer.
This question belongs to: Computer Computer Fundamentals
Question #204
Which of the following is a type of computer based on purpose?
A. Hybrid
B. General-purpose
C. Digital
D. Analog
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Correct Answer: Option B

Explanation:
Computers can be general-purpose (desktops) or special-purpose (embedded), based on their intended use.
This question belongs to: Computer Computer Fundamentals
Question #205
What is the decimal equivalent of binary 1001?
A. 9
B. 8
C. 11
D. 10
Discuss
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Correct Answer: Option A

Explanation:
1001 = 8+1 = 9.
This question belongs to: Computer Computer Fundamentals
Question #206
Which memory is directly accessible by the CPU?
A. RAM
B. USB drive
C. Hard disk
D. CD-ROM
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Correct Answer: Option A

Explanation:
RAM is directly accessible by the CPU for reading and writing data during processing.
This question belongs to: Computer Computer Fundamentals
Question #207
What is the main disadvantage of first-generation computers?
A. Large size and high power consumption
B. Low speed
C. Lack of software
D. High cost
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Correct Answer: Option A

Explanation:
First-generation computers were huge, consumed a lot of power, and generated excessive heat.
This question belongs to: Computer Computer Fundamentals
Question #208
Which of the following is an example of a special-purpose computer?
A. Tablet
B. Digital watch
C. Laptop
D. Smartphone
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Correct Answer: Option B

Explanation:
A digital watch is a special-purpose computer designed specifically for timekeeping.
This question belongs to: Computer Computer Fundamentals
Question #209
What is the full form of PROM?
A. Programmable Read-Only Memory
B. Primary Read-Only Memory
C. Process Read-Only Memory
D. Programmable Random-Only Memory
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Correct Answer: Option A

Explanation:
PROM stands for Programmable Read-Only Memory, which can be programmed once by the user.
This question belongs to: Computer Computer Fundamentals
Question #210
Which of the following is a characteristic of hybrid computers?
A. Are always portable
B. Combine analog and digital features
C. Use only binary
D. Are used only in medical fields
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Correct Answer: Option B

Explanation:
Hybrid computers combine the best features of analog and digital computers.
This question belongs to: Computer Computer Fundamentals
Question #211
What is the binary equivalent of decimal 20?
A. 10010
B. 11000
C. 10100
D. 11100
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Correct Answer: Option C

Explanation:
20 in binary is 10100 (16+4).
This question belongs to: Computer Computer Fundamentals
Question #212
Which component is responsible for fetching instructions in a CPU?
A. Register
B. Cache
C. Control Unit
D. ALU
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Correct Answer: Option C

Explanation:
The Control Unit fetches instructions from memory and decodes them for execution.
This question belongs to: Computer Computer Fundamentals
Question #213
Which generation of computers used magnetic drums for memory?
A. Third
B. Second
C. First
D. Fourth
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Correct Answer: Option C

Explanation:
First-generation computers used magnetic drums for primary memory.
This question belongs to: Computer Computer Fundamentals
Question #214
What is the purpose of the cache memory?
A. To store all data permanently
B. To increase RAM size
C. To manage power
D. To store frequently used data for quick access
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Correct Answer: Option D

Explanation:
Cache memory holds frequently accessed data to reduce latency and speed up processing.
This question belongs to: Computer Computer Fundamentals
Question #215
Which of the following is an example of a pointing device?
A. Microphone
B. Keyboard
C. Mouse
D. Scanner
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Correct Answer: Option C

Explanation:
A mouse is a pointing device used to interact with graphical user interfaces.
This question belongs to: Computer Computer Fundamentals
Question #216
What is the octal equivalent of binary 101?
A. 7
B. 5
C. 6
D. 4
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Correct Answer: Option B

Explanation:
Binary 101 = decimal 5, which is octal 5.
This question belongs to: Computer Computer Fundamentals
Question #217
Which of the following is not a function of an operating system?
A. Processor management
B. Memory management
C. File management
D. Compiling programs
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Correct Answer: Option D

Explanation:
Compiling is done by a compiler, not the OS; the OS manages resources.
This question belongs to: Computer Computer Fundamentals
Question #218
What is the significance of von Neumann architecture?
A. It eliminates the need for CPU
B. It uses separate memory for data and instructions
C. It is used only in mainframes
D. It uses a single memory for both data and instructions
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Correct Answer: Option D

Explanation:
The von Neumann architecture uses a single shared memory for both data and instructions, which is the basis for most modern computers.
This question belongs to: Computer Computer Fundamentals
Question #219
Which type of computer is used in a modern car's engine control?
A. Supercomputer
B. Minicomputer
C. Embedded system
D. Mainframe
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Correct Answer: Option C

Explanation:
Engine control units (ECUs) are embedded computers designed for specific automotive functions.
This question belongs to: Computer Computer Fundamentals
Question #220
What is the decimal equivalent of hexadecimal A?
A. 10
B. 13
C. 11
D. 12
Discuss
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Correct Answer: Option A

Explanation:
Hexadecimal A represents decimal 10.
This question belongs to: Computer Computer Fundamentals

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