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    Computer Science GCSE

    Lossy Compression

    What Lossy Compression means in Computer Science GCSE, as defined for Pearson Edexcel.

    Definitions of Lossy Compression

    Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.

    A data compression algorithm that permanently discards some data to significantly reduce the file size.
    Pearson Edexcel · Data storage and compression (study guide)
    A compression algorithm that permanently removes some data from a file to reduce its size.
    Pearson Edexcel · Topic 2: Data (study guide)
    A data compression algorithm that permanently discards some data to reduce file size.
    Pearson Edexcel · Data (study guide)

    Topics that use Lossy Compression

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    Using Lossy Compression in the exam

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