data compression
what is data compression?Data compression is when you store data in a format that requires less space than usual. Data compression is particularly useful in communications because it enables devices to transmit or store the same amount of data in fewer bits. There are a variety of data compression techniques, but only a few have been standardised.
Data compression is also widely used in backup utilities,spreadsheet applications, and database management systems. Certain types of data, for example bit-mapped graphics, can be compressed to a small fraction of their normal size. methods of data compressionThere are two categories of compression techniques used with digital graphics, lossy and lossless. These techniques have various methods which are used by different file formats and achieve different results.
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