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Computer Science · May / June 2022 · Paper 11 · Question 3

0478

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The question as text

Three types of storage media are magnetic, optical and solid state.

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  • 3(a)[1]

    Any one from e.g.:

    SD card
    USB flash memory drive
    Random access memory // RAM

  • 3(b)[3]

    Any three from:

    Laser is shone at the disk
    An (arm/head) moves the laser across the surface of the disk
    The laser burns pits onto the surface of the disk
    The laser is used to read the pits and lands on the surface of the disk
    The reflected light from the laser shining on the disk is captured (by a sensor)

  • 3(c)(i)[3]

    Any three from:

    It is small in size // compact // lightweight // portable
    It has low power consumption
    It runs quietly
    It runs at a cool temperature
    It is robust when dropped // durable
    Fast access/read/write speed
    High capacity
    Not affected by magnets

  • 3(c)(ii)[2]

    Operating system
    Application software // by example
    Utility software // by example
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