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Cambridge IGCSE Computer Science practice

Paper 1 structured question: Data storage and compression

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Data storage and compression

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Paper 1Computer Systems1 marks

Understanding data storage units is crucial for computer science.

Description

Data Storage Units

Data storage is measured in bits, bytes, kibibytes, mebibytes, gibibytes, tebibytes, pebibytes, and exbibytes. Each unit is a multiple of the previous one, primarily based on powers of 2.

  1. a

    Explain the relationship between gibibytes and mebibytes.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 1 structured question: Data storage and compression

Paper 1Computer Systems1 marks

Description

Data Storage Units

Data storage is measured in bits, bytes, kibibytes, mebibytes, gibibytes, tebibytes, pebibytes, and exbibytes. Each unit is a multiple of the previous one, primarily based on powers of 2.

  1. a

    State the number of bits in a byte.

    Aim for approximately 1 distinct marking point.

    [1]