Backup utilities and database management are two types of data often compressed. Data compression can be helpful in communication as it lets you store the same amount of data in fewer bits. Note that you can compress and decompress with this utility based on what you choose from the drop down menu. If you are using a laptop or an Apple Mac, the function keys. When you hold Shift and press F3, the text toggles from sentence case (first letter uppercase and the rest lowercase), to all uppercase (all capital letters), and then all lowercase. For the phrase “This is input text.” You will see eNoLycgsVgChvILSEoWS1IoSPQBFZgb4 as the compressed result in the Output area. Highlight all the text you want to change. Resources are needed to both compress and decompress. The decompression takes extra processing. Lossy compression identifies unnecessary information and removes it.Ĭompression reduces resources usage such as storage space. You must decompress compressed data before you can use it. Compression can be lossy or lossless with lossless compression involving no loss of information. In computer science data compression refers to encoding using fewer computing resourse bits than the original. The algorithm used for the compress utility dates back from work done in the 1980s. Once a file is compressed using Compress, you can restore the file to its original state with the uncompress utility. Uncompress restores attributes of a compressed file. Zipping a file is an example of compression.Ĭompress is a Unix based compress program. Make a file size smaller when you compress.
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