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Computer Science · May / June 2021 · Paper 11 · Question 2

0478

As printed in the paper

The question as text

Julia inputs personal data into her computer. She stores three copies of the data using a hard disk drive (HDD), a solid state drive (SSD) and a USB flash memory drive.

Read automatically from the paper; the printed page above is exact.

Show the answer and mark scheme

  • 2(a)[3]

    Any three from:

    Keyboard
    Mouse
    Microphone
    Keypad
    Touchscreen
    Touchpad

  • 2(b)[6]

    One mark for each correct row.

    USB flash memory Statement

    HDD

    SSD

    drive (✓)

    (✓)

    (✓)

    it has no moving parts
    it is non-volatile
    it can use NAND gates to store data
    it uses magnetic properties to store data
    it has the smallest physical size
    it has the slowest read/write speeds

  • 2(c)(i)[2]

    Any two from:

    It cannot be inserted incorrectly
    Supports different transmission speeds
    High speed transmission
    Automatically detected (not connected) // automatically downloads drivers
    Powers the device (for data transfer)
    Backward compatible

  • 2(c)(ii)[1]

    Serial
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