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5 Cards in this Set
- Front
- Back
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what else is compresing known as? |
zipping |
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describe compression |
-makes files smaller so take less space in computer -one file can be compressed or many files can be compressed into one -is done using an algorithm |
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describe how an algorithm and index is used in compression |
-an algorithm is used to make file size smaller -index file holds the information to recreate the original file |
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advanatges of file compression |
-saving memory space on computers -files will upload and download more quickly -files will better fit restriction such as attchment or email |
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how does expanding work? |
the index allows the files to return to their original size |
