Random Access Memory and Read Only Memory

By Callum Leith


If you don't already know, RAM stands for Random Access Memory.

  • It is where the operating system (e.g Windows 7) is loaded to and it also holds all programs and data.
  • The processor can read and write to RAM at high speeds.
  • Data within RAM can be changed unlike ROM
  • All data in RAM is lost when the computer is switched off.


ROM stands for Read Only Memory.

  • It is used to store a small part of the operating system called the Bootstrap Loader
  • Data is stored permanently in ROM
  • Data is not lost when the computer is switched off.
  • Data in ROM cannot be changed

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