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MCQ Practice

Computer & IT MCQs

Which of the following is not a type of bus in the computer?

  • A. Data bus
  • B. Control bus
  • C. Power bus
  • D. Address Bus
Explanation:
A power bus is not a standard type of computer bus.

____ provides a path to transfer data between CPU and memory.

  • A. Control Bus
  • B. Address Bus
  • C. Data Bus
  • D. None of these
Explanation:
The data bus carries actual data between the CPU and the memory.

Which of the following is a graphic Change format extension?

  • A. MPG
  • B. JPEG
  • C. GIF
  • D. All of these
Explanation:
MPG, JPEG, and GIF are all common graphic file formats.

LASER Stands for ____.

  • A. Light alteration stimulated emission of radiation
  • B. Light amplification stimulated emission of radiation
  • C. Light absorption stimulated emission of radiation
  • D. None of these
Explanation:
LASER stands for Light Amplification by Stimulated Emission of Radiation.

Flat panels are usually used in ____.

  • A. Supercomputer
  • B. Personal computer
  • C. Mainframe computer
  • D. Laptops
Explanation:
Flat panels (LCD/LED) are commonly used in laptops.

What is the full form of LED?

  • A. Low-Emitting Diode
  • B. Light Emitting Diode
  • C. Light amplification Diode
  • D. None of these
Explanation:
LED stands for Light Emitting Diode.

LCD stands for ____.

  • A. Light Clear Display
  • B. Liquid Crystal Display
  • C. Light Emitting Diode
  • D. None of these
Explanation:
LCD stands for Liquid Crystal Display.

CRT is the technology used in a ____.

  • A. Mouse
  • B. Monitor
  • C. CPU
  • D. Trojan Horse
Explanation:
CRT technology was used in older computer monitors.

CRT Stands for ____.

  • A. Cathode Ray Tube
  • B. Crystal Ray Tube
  • C. Cabin Ray Tube
  • D. None of these
Explanation:
CRT stands for Cathode Ray Tube, an old display technology.

Paint programs keep track of every ____ placed on the screen.

  • A. Image
  • B. Object
  • C. Pixel
  • D. Color
Explanation:
Paint programs track individual pixels on the screen.