Question

Which of the following options is a secondary storage device in a computer?
1. RAM
2. ROM
3. Hard Disk
4. Cache

Answer 1

Correct Answer - Option 3 : Hard Disk

The correct answer is Hard Disk.

• Hard Disk is a secondary storage device in a computer.

• 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)
    • Secondary memory (hard drive, CD, etc.)

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• Random Access Memory (RAM)
  • It is primary-volatile memory.
• Read-Only Memory (ROM)
  • It is primary-non-volatile memory.
  • It is also called read-write memory or the main memory or the primary memory.
• Cache
  • A cache is a reserved storage location that collects temporary data to help websites, browsers, and apps load faster.