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Computer & IT MCQs

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ACL stands for ____.

  • A. Access Control List
  • B. Access Central List
  • C. Access Check List
  • D. Adoptive Control List
Explanation:
ACL means Access Control List, used in networking and security.

Abacus was the first ____.

  • A. Electronic computer
  • B. mechanical computer
  • C. electronic calculator
  • D. mechanical calculator
Explanation:
The abacus is considered the earliest mechanical calculating device.

4K resolution is ____.

  • A. 4496×2460
  • B. 4296×2260
  • C. 4196×2060
  • D. 4096×2160
Explanation:
Standard 4K UHD resolution is 4096 × 2160 pixels.

What is MS Word?

  • A. Word Processing Software
  • B. Spreadsheet
  • C. Operating system
  • D. None of these
Explanation:
Microsoft Word is a popular word processing application.

Virus is the word of which language?

  • A. English
  • B. Latin
  • C. Greek
  • D. None of these
Explanation:
The term "virus" originates from Latin, meaning "poison" or "slimy liquid."

Microsoft was founded in ____.

  • A. 1970
  • B. 1972
  • C. 1975
  • D. 1981
Explanation:
Microsoft was founded by Bill Gates and Paul Allen on April 4, 1975.

ALU stands for ____.

  • A. Arithmetic Longest Unit
  • B. Arithmetic Logic Unit
  • C. Arithmetic Longest United
  • D. None of these
Explanation:
The ALU (Arithmetic Logic Unit) performs arithmetic and logical operations in the CPU.

8 Bits make up a ____.

  • A. Byte
  • B. Megabyte
  • C. Kilobyte
  • D. None
Explanation:
8 bits constitute 1 byte.

4 nibbles equal to ____.

  • A. 2 bits
  • B. 4 bits
  • C. 2 bytes
  • D. 4 bytes
Explanation:
4 nibbles = 16 bits = 2 bytes.

1GB is equal to ___ bytes.

  • A. 1 million bytes
  • B. 1 trillion bytes
  • C. 1 billion bytes
  • D. None
Explanation:
1 GB = 1,073,741,824 bytes (approximately 1 billion bytes in decimal, exactly 2³⁰ bytes).

Computer & IT MCQs for CSS Preparation

Practice Important Questions

This section provides important MCQs with answers and explanations to help candidates prepare effectively for CSS, PMS, and other competitive exams.

Improve Conceptual Understanding

Each MCQ is designed to strengthen your understanding of key concepts and improve analytical thinking required in exams.

Exam-Oriented Preparation

These MCQs follow actual exam patterns, helping aspirants practice relevant questions and improve performance.

Useful for CSS and PMS Exams

This collection is highly beneficial for CSS, PMS, and other competitive exams, improving accuracy and confidence.