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MCQ Practice

Computer & IT MCQs

Where does a computer mouse move over the table surface, the trackball is ____.

  • A. Stationary
  • B. Difficult to move
  • C. Dragged
  • D. Moved in small steps
Explanation:
In a trackball mouse, the ball remains stationary while the user rotates it.

Which device is used to enter data into a computer?

  • A. Input
  • B. Output
  • C. Both A and B
  • D. None of these
Explanation:
Input devices are used to enter data into the computer.

All peripheral devices connected to?

  • A. CPU
  • B. Motherboard
  • C. Monitor
  • D. Hard Drive
Explanation:
All peripheral devices connect to the motherboard.

What is the name of the hardware that can control the operation of a computer?

  • A. Drives
  • B. Operators
  • C. Connectors
  • D. None of these
Explanation:
Drives (hard disk, CD, etc.) are hardware that control data storage and retrieval.

Physical parts of the computer that we can see and touch are known as ____.

  • A. Software
  • B. Hardware
  • C. Both A and B
  • D. Computer
Explanation:
Hardware refers to the physical, tangible components of a computer.

A decoder is required in case of a ___.

  • A. Vertical Microinstruction
  • B. Horizontal Microinstruction
  • C. Multilevel Microinstruction
  • D. All types of Microinstruction
Explanation:
A decoder is needed to interpret control signals from vertical microinstructions.

An electronic logic gate whose output is logic 1 only when all inputs are logic 1 is ____.

  • A. NOR
  • B. NAND
  • C. OR
  • D. NOT
Explanation:
NAND gate outputs 0 only when all inputs are 1 (otherwise 1).

AND, OR, XOR, NOT, NAND, NOR are which type of gate?

  • A. Logic gate
  • B. Swing gate
  • C. Program gate
  • D. Automatic gate
Explanation:
These are fundamental logic gates used in digital electronics and computer circuits.

What is the smallest header in HTML by default?

  • A. H1
  • B. H2
  • C. H3
  • D. H4
Explanation:
H4 is the smallest heading size among the given options in the document.

HTML is the basic language used to create ____.

  • A. Databases
  • B. Spreadsheets
  • C. Web pages
  • D. Desktop publishing
Explanation:
HTML is used to create and structure web pages.