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RAM (Random Access Memory)

RAM (Random Access Memory). Definition . Form of computer data storage The computer’s short term memory (Disk space is long term) Computer chips that temporarily store data to enhance computer performance Uses integrated circuits that allow data to be accessed in any “random” order

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RAM (Random Access Memory)

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  1. RAM (Random Access Memory)

  2. Definition • Form of computer data storage • The computer’s short term memory (Disk space is long term) • Computer chips that temporarily store data to enhance computer performance • Uses integrated circuits that allow data to be accessed in any “random” order • Doesn’t matter where data is if its related or not

  3. Volatile Memory • Loses contents once power is cut. • Form of electricity while computer is on • Pulls out what it needs at the moment from long term memory • Can be saved when computer is shut down properly. • When computer boots up, RAM fills with programs automatically loaded at start-up

  4. Different Types • Architecture and speed • Much faster but more expensive than permanent memory • Must be compatible with motherboard • Newer - Dynamic RAM • Older – Single In-line Memory Modules (SIMMS) or Dual In-Line Memory Modules (DIMMS)

  5. Other storage… • Magnetic discs • Optical discs • Flash memory • Rely on physical movement • Longer data transfer and retrieval time • Not as fast as RAM

  6. History Early type: magnetic core memory (1949-1952) Used until 1960’s

  7. How it works…. http://www.youtube.com/watch?v=DZMIPIVmEcQ

  8. Can you install it yourself? http://www.youtube.com/watch?v=atifCDg30xM

  9. Can you install it yourself? • Cheap • Anywhere from $14 - $600 depending on what you want

  10. Buying it…. • Check out consumer reports: http://www.consumerreports.org/cro/electronics-computers/computers-internet/computers/computer-buying-advice/computer-features/laptop-features.htm Easiest way: www.bestbuy.com Best Buy In-Store ($36.99 - $499.99)

  11. Sources • http://en.wikipedia.org/wiki/Random-access_memory • http://www.wisegeek.com/what-is-random-access-memory.htm

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