Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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.

  2. jcsd
  3. Dec 30, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper

    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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook