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MCQ Practice

Computer & IT MCQs

At the start of the computer, the data that can retain stored information even after power is removed:

  • A. Volatile
  • B. Non-Volatile
  • C. Both A & B
  • D. Hard Drive
Explanation:
Non-volatile memory (ROM, hard disk) retains data without power.

Which is a volatile memory?

  • A. ROM
  • B. BIOS
  • C. PROM
  • D. RAM
Explanation:
RAM loses its data when power is turned off (volatile).

RAM is also known as ____. ____.

  • A. Read-Only Memory
  • B. Read-Write Memory
  • C. Programmable Read-Only Memory
  • D. None of these
Explanation:
RAM is read-write memory (volatile).

What does RAM in a computer stand for?

  • A. Read and Memorize
  • B. Random Access Memory
  • C. Random Access Module
  • D. Erasable Programmable Read-Only Memory
Explanation:
RAM stands for Random Access Memory.

Where is RAM located?

  • A. Motherboard
  • B. External drive
  • C. Expansion board
  • D. None of these
Explanation:
RAM modules are installed directly on the motherboard.

Another term for main memory is ____.

  • A. RAM
  • B. Cache
  • C. Hard Disk
  • D. None of these
Explanation:
Main memory is commonly called RAM.

The primary function of a register in CPU is ____.

  • A. To store data temporarily
  • B. To process instructions
  • C. To store program instructions
  • D. To store files
Explanation:
Registers temporarily hold data and instructions during processing.

A small high-speed memory inside CPU is ____.

  • A. Register
  • B. RAM
  • C. Cache
  • D. ROM
Explanation:
Registers are the fastest and smallest storage inside the CPU.

The ability to read or write each piece of information in a storage device in approximately the same length of time regardless of its location is ____.

  • A. Sequential Access
  • B. Random Access
  • C. Raster Scan
  • D. Search
Explanation:
Random Access Memory (RAM) allows equal access time to any location.

When does the following hold data and the processing instructions temporarily until the CPU needs it?

  • A. ROM
  • B. Control Unit
  • C. Main memory
  • D. None of these
Explanation:
Main memory (RAM) temporarily holds data and instructions for the CPU.