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Computer Science · Oct / Nov 2021 · Paper 11 · Question 7

0478

As printed in the paper

Show the answer and mark scheme

  • 7(a)[3]

    One mark per correct storage, two marks for justification.

    Secondary
    It is non-volatile storage
    It is not directly accessed by the CPU

  • 7(b)[4]

    Any four from:

    Uses flash memory
    Data is flashed onto (silicon) chips
    Uses NAND/NOR technology // Can use flip-flops
    Uses transistors/control gates/floating gates …
    … to control the flow of electrons
    It is a type of EEPROM technology
    When data is stored the transistor is converted from 1 to 0 / 0 to 1
    Writes (and reads) sequentially
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