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What is a chip ?

  1. Dec 30, 2009 #1
    Why a chip that can store so much information? I´m not seeking a traditional technique answer.

    M/S
     
  2. jcsd
  3. Dec 30, 2009 #2

    mgb_phys

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    You mean a memory chip?

    In simple terms each 'bit' of memory contains a capacitor which can store a small amount of electricity, and a transistor which can measure electricity.
    To write a 'one' you fil the capacitor with electrical charge, to write a zero you empty the capacitor.
    To read the memory the transistor measures if there is electrical charge on the capacitor or not.

    You can fit a lot of them on a chip because you can make both the capacitor and transistor very small - only a few 100 atoms wide.
     
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