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 12 of 17
Question #221
Which of the following is a characteristic of fourth-generation computers?
A. Used transistors
B. Used magnetic tapes
C. Used large-scale integration
D. Used vacuum tubes
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Correct Answer: Option C

Explanation:
Fourth-generation computers used LSI (Large Scale Integration) and VLSI chips, leading to microprocessors.
This question belongs to: Computer Computer Fundamentals
Question #222
What is the purpose of the boot process?
A. To install software
B. To shut down the computer
C. To load the operating system into memory
D. To format the hard disk
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Correct Answer: Option C

Explanation:
Booting loads the operating system from secondary storage into RAM to start the computer.
This question belongs to: Computer Computer Fundamentals
Question #223
Which of the following is an example of an output device for sound?
A. Headphone jack
B. Sound card
C. Speaker
D. Microphone
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Correct Answer: Option C

Explanation:
A speaker outputs audio signals.
This question belongs to: Computer Computer Fundamentals
Question #224
What is the hexadecimal equivalent of decimal 255?
A. FC
B. FF
C. FD
D. FE
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Correct Answer: Option B

Explanation:
255 in decimal is FF in hexadecimal (15*16 + 15).
This question belongs to: Computer Computer Fundamentals
Question #225
Which of the following is a type of software?
A. Operating system
B. Printer
C. Hard disk
D. CPU
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Correct Answer: Option A

Explanation:
Operating system is software; others are hardware.
This question belongs to: Computer Computer Fundamentals
Question #226
Which generation of computers used magnetic tape and disk storage?
A. Third
B. First
C. All generations after first
D. Second
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Correct Answer: Option C

Explanation:
Magnetic tape and disks were used from second generation onward, but first used drum and core.
This question belongs to: Computer Computer Fundamentals
Question #227
What is the main purpose of an input device?
A. To store data permanently
B. To process data
C. To enter data and instructions
D. To display output
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Correct Answer: Option C

Explanation:
Input devices are used to feed data and instructions into the computer.
This question belongs to: Computer Computer Fundamentals
Question #228
Which of the following is a characteristic of a supercomputer?
A. Small size
B. Low cost
C. Has very high processing speed
D. Used for general-purpose tasks
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Correct Answer: Option C

Explanation:
Supercomputers are known for their extremely high processing speeds.
This question belongs to: Computer Computer Fundamentals
Question #229
What is the binary equivalent of decimal 32?
A. 101000
B. 100010
C. 100000
D. 110000
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Correct Answer: Option C

Explanation:
32 in binary is 100000 (2^5).
This question belongs to: Computer Computer Fundamentals
Question #230
Which component of the CPU stores temporary data?
A. ALU
B. Registers
C. Control Unit
D. Cache
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Correct Answer: Option B

Explanation:
Registers are small, fast storage locations within the CPU that hold intermediate data.
This question belongs to: Computer Computer Fundamentals
Question #231
Which of the following is an example of a non-impact printer?
A. Dot matrix
B. Laser printer
C. Line printer
D. Daisy wheel
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Correct Answer: Option B

Explanation:
Laser printers are non-impact, using toner and heat to print without striking the paper.
This question belongs to: Computer Computer Fundamentals
Question #232
What is the full form of EEPROM?
A. Electronically Erasable Programmable Read-Only Memory
B. Electrically Erasable Programmable Read-Only Memory
C. Electrical Erasable Programmable Read-Only Memory
D. Electrically Erasable Programmable Random-Only Memory
Discuss
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Correct Answer: Option B

Explanation:
EEPROM stands for Electrically Erasable Programmable Read-Only Memory, which can be erased and reprogrammed electrically.
This question belongs to: Computer Computer Fundamentals
Question #233
Which type of computer is typically used in banks for transaction processing?
A. Microcomputer
B. Mainframe
C. Minicomputer
D. Supercomputer
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Correct Answer: Option B

Explanation:
Mainframes are used in large-scale transaction processing like banking due to high reliability and throughput.
This question belongs to: Computer Computer Fundamentals
Question #234
What is the octal equivalent of decimal 8?
A. 11
B. 13
C. 12
D. 10
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Correct Answer: Option D

Explanation:
8 in decimal is 10 in octal (1*8 + 0).
This question belongs to: Computer Computer Fundamentals
Question #235
Which of the following is not a hardware component?
A. Keyboard
B. Monitor
C. Windows
D. Mouse
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Correct Answer: Option C

Explanation:
Windows is an operating system (software), not hardware.
This question belongs to: Computer Computer Fundamentals
Question #236
What is the function of an assembler?
A. Executes programs
B. Translates machine code to assembly
C. Translates high-level language to assembly
D. Translates assembly language to machine code
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Correct Answer: Option D

Explanation:
An assembler converts assembly language instructions into machine code.
This question belongs to: Computer Computer Fundamentals
Question #237
Which generation of computers introduced the use of high-level languages?
A. Second
B. Fourth
C. First
D. Third
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Correct Answer: Option A

Explanation:
Second-generation computers saw the development of high-level languages like FORTRAN.
This question belongs to: Computer Computer Fundamentals
Question #238
What is the decimal equivalent of octal 15?
A. 13
B. 14
C. 16
D. 15
Discuss
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Correct Answer: Option A

Explanation:
Octal 15 = 1*8 + 5 = 13 decimal.
This question belongs to: Computer Computer Fundamentals
Question #239
Which of the following is an example of a storage device?
A. Scanner
B. Hard disk
C. Printer
D. Speaker
Discuss
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Correct Answer: Option B

Explanation:
Hard disk is a storage device for permanent data retention.
This question belongs to: Computer Computer Fundamentals
Question #240
What is the role of the BIOS in the boot process?
A. Scans for viruses
B. Performs POST and initializes hardware
C. Installs drivers
D. Loads the operating system
Discuss
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Correct Answer: Option B

Explanation:
BIOS runs Power-On Self-Test (POST) and initializes hardware before loading the OS.
This question belongs to: Computer Computer Fundamentals

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