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4. Data Compression

    • Students Learn About:

      DataCompression Techniques:

      • Lossy vs Lossless
        • Lossless compression recreates a compressed file as an identical match to its original form.
        • All lossless compression uses techniques to break up a file into smaller segments, for storage or transmission, that get reassembled later. 
        • Lossless compression is used for files, such as applications, that need to be reproduced exactly like the original file. 

        • Lossy compression, on the other hand, eliminates repeated or "unnecessary" pieces of data, as we discussed above. When such a file is decompressed, you get the compression software's re-interpretation of the original file.
            Students Learn to:
            • explain the purpose of data compression techniques
            • perform data compression on a file
        Subpages (1): Student Activity
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