data compression

Popular Terms
Reducing the 'electronic space' (data bits) used in representing a piece of information, by eliminating the repetition of identical sets of data bits (redundancy) in an audio/video, graphic, or text data file. White spaces in text and graphics, large blocks of the same color in pictures, or other continuously recurring data, is reduced or eliminated by coding (encryption) with a program that uses a particular type of compression algorithm. The same program is used to decompress (decrypt) the data so that it can be heard, read, or seen as the original data. Compression ratios of 1:10 to 1:20 (or much higher, with emerging technologies) are routinely achieved with common types of data, resulting in much smaller storage space requirements or much faster communications.
Fax machines were the earliest consumer equipment to use a data compression technology. Also called data compaction. See also streaming media.


Email Print Embed

  • 665167575 2018-01-20
  • 576171574 2018-01-20
  • 84494573 2018-01-20
  • 504150572 2018-01-20
  • 796416571 2018-01-20
  • 72279570 2018-01-20
  • 50734569 2018-01-20
  • 5215568 2018-01-19
  • 512120567 2018-01-19
  • 314858566 2018-01-19
  • 11778565 2018-01-19
  • 702126564 2018-01-19
  • 715729563 2018-01-19
  • 569692562 2018-01-19
  • 295282561 2018-01-19
  • 991485560 2018-01-19
  • 230200559 2018-01-18
  • 10324558 2018-01-18
  • 825271557 2018-01-18
  • 228878556 2018-01-18