RAM vs ROM | Computer Notes



Computer NotesRAM and ROM

RAM:

  •  It stands for Random Access Memory.
  •  Data can Read/Write randomly.
  •  RAM is used for storage of active programs and data.
  •  It is a temporary memory.
  •  It is also called Volatile memory (it will lose all stored data if power is turned off).
  •  It increases the processing speed of a computer.
  •  Also known as Primary memory.
  •  Hold instructions or data.
  •  RAM is available in different sizes.
  • 32 MB, 64 MB, 128 MB, 256 MB (etc)
  •  Two types are
  • i. Static RAM
  • ii. Dynamic RAM

ROM:

  •  It Stands for Read Only Memory.
  •  Holds data or instructions permanently so it is also called permanent memory.
  •  Data can only Read.
  •  It is also called Non-Volatile memory (it will not lose stored data if power is turned off).
  •  User can’t change it directly.
  •  Instructions are stored on it during manufacturing.
  •  Types are
  • PROM (Programmable Read Only Memory)
  • EPROM (Erasable Programmable Read Only Memory)
  • Examples: BIOS (Basic Input/Output System)

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