- Data in computers are normally stored in a way which causes every character (including spaces) to occupy the same amount of memory space. This is usually an eight digit code consisting of 0s and 1s. As the amount of data needed to be held in computers increased, techniques have been developed to store more data in a given amount of memory. These techniques remove unnecessary (redundant) pieces of information, thus compressing more information into a computers memory. The redundant pieces of information no longer have to be stored. It can be automatically removed from data when it is being stored on a hard disk and can be re-added when needed. This is done by processing the data through a data compression algorithm.
International financial encyclopaedia . 2014.
Look at other dictionaries:
data compression — noun (computing) Altering the form of data to reduce its storage space • • • Main Entry: ↑data * * * data compression UK US noun [uncountable] computing the process of changing information into a smaller form that can be stored more easily or… … Useful english dictionary
Data compression — Source coding redirects here. For the term in computer programming, see Source code. In computer science and information theory, data compression, source coding or bit rate reduction is the process of encoding information using fewer bits than… … Wikipedia
data compression — Process of reducing the amount of data needed for storage or transmission of a given piece of information (text, graphics, video, sound, etc.), typically by use of encoding techniques. Data compression is characterized as either lossy or lossless … Universalium
data compression — Any method of encoding data so that it occupies less space than it did in its original form, thus allowing that data to be stored, backed up, retrieved, or transmitted more efficiently. Data compression is used in fax and many other forms of… … Dictionary of networking
data compression — Some modems have the capability to squash data so that it takes up less space. When another modem (with this capability) receives the data, it unsquashes it to its original form. By using data compression, a modem can send information faster … Dictionary of telecommunications
Data Compression — Techniques used to reduce the amount of redundant information being held in or transmitted by a computer system. Data compression techniques allow more data to be stored in a computer and more data to be electronically transmitted than would… … International financial encyclopaedia
data compression — duomenų spūda statusas T sritis radioelektronika atitikmenys: angl. data compression vok. Datenkompression, f rus. сжатие данных, n pranc. compression de données, f … Radioelektronikos terminų žodynas
Data compression — A&V A technique that provides for the transmission or storage, without noticeable information loss, of few data bits than were originally used when the data was created … Audio and video glossary
data compression — noun Any of several techniques for reducing the number of bits needed to represent an item of digital data, either to save storage or to use less bandwidth when transmitting it … Wiktionary
data compression — reduction of a file containing data using a special algorithm (Computers) … English contemporary dictionary