Lossless is a term that is commonly used when referring to compression methods. A lossless form of compression requires that when data is compressed it can be uncompressed
without the loss of any of the original information. This is different than a lossy form of compression.
Lossless compression is used for information that must be identical to the original data such as computer programs or databases.
Common forms of lossless compression include RLE and LZ77.
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