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Select the odd one from the following.
1. Mouse
2. ROM
3. Keyboard
4. Microphone

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Correct Answer - Option 2 : ROM

The correct answer is ROM.

  • ROM is the odd one from the following.

 

  • ROM
    • ROM is a type of storage unit.
    • It is primary-non-volatile memory.
    • It is also called read-write memory or the main memory or the primary memory.
  • Mouse, Keyboard, Microphone are examples of input devices.

  • Storage Unit
    • A storage device is a piece of hardware that is primarily used for storing data.
    • Digital storage is measured in megabytes (MB), gigabytes (GB), and, these days, terabytes (TB).
    • Computer memory is of two basic type –
      • Primary memory (RAM and ROM) and
      • Secondary memory (hard drive, CD, etc.).
  • ​​Input Unit
    • The input device is a part of computer hardware equipment used to provide data and control signals.
    • Mouse, Keyboard, Microphone are examples of input devices.

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