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MCQ Practice

Computer & IT MCQs

Which of the following components has input, output, and storage available?

  • A. Firmware
  • B. Software
  • C. Hardware
  • D. All of these
Explanation:
Hardware provides input, output, and storage capabilities.

A program representing eight symbols is called ____.

  • A. Binary
  • B. Octal
  • C. Decimal
  • D. None of these
Explanation:
Octal represents eight symbols (0-7).

In which of the following forms is data stored in a computer?

  • A. Decimal
  • B. Binary
  • C. Hexadecimal
  • D. Octal
Explanation:
Computers store all data in binary form.

Bit is also called ____.

  • A. Binary Unit
  • B. Binary Digit
  • C. Binary System
  • D. Digital System
Explanation:
Bit stands for Binary Digit.

Which amongst the following is the smallest unit of storage?

  • A. Bit
  • B. Nibble
  • C. Byte
  • D. Megabyte
Explanation:
A bit is the smallest unit of data storage.

Primary storage is ____ as compared to secondary storage.

  • A. Fast and inexpensive
  • B. Slow and inexpensive
  • C. Fast and expensive
  • D. Slow and expensive
Explanation:
Primary storage (RAM) is fast but more expensive than secondary storage.

No computer can do anything without a ____.

  • A. Memory
  • B. Chip
  • C. Program
  • D. Output
Explanation:
Memory is essential for any computer operation.

Which is used for ON/OFF ____.

  • A. Fuse
  • B. Switch
  • C. Breaker
  • D. All of these
Explanation:
A switch is used to turn the computer ON or OFF.

Which physical part of a computer is responsible for connecting various components and peripherals?

  • A. Path
  • B. Address Bus
  • C. Route
  • D. All of these
Explanation:
The address bus helps connect and address components.

A bus with 32 data lines can transport how many bits at a time?

  • A. 8 bits
  • B. 16 bits
  • C. 32 bits
  • D. 0 only
Explanation:
A 32-line data bus can transfer 32 bits simultaneously.