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Verified Answer :

  1. People should look for RAM that is compatible to their system. You want RAM that has enough gigs and has a reasonable bus speed
    2. RAM is Random Access Memory.
    3. A computer needs Ram to store temporary files where they can be read/wrote to VERY FAST. You cant use a normal HDD as RAM because you dont have bus speed etc.
    4.ROM is Read Only Memory.
    5.
    ROM is a type of non- volatile memory. Data in ROM is permanently written and is not erased when you power off your computer.
    ROM will retain data without the flow of electricity