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Key points

  • Computers store programs and data currently in use in RAM (Random Access Memory)
  • RAM consists of a set of memory locations each with an individual address
  • RAM is not persistent – when the computer is switched off, RAM will lose its values.
  • RAM is used for storing programs and data when in use because its access time is much quicker than backing storage devices. RAM data access is measures in nanoseconds – hundreds of times faster than accessing a hard drive.



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