Compression vs. Defragmentation

Compression and Defragmentation Definitions
Compression
The act or process of compressing.
Defragmentation
To reorganize (a storage device) to eliminate or reduce fragmentation.
Compression
The state of being compressed.
Defragmentation
(computing) The action of defragmenting, particularly with respect to a computer disk or drive.
Compression
The process by which the working substance in a heat engine, such as the vapor mixture in the cylinder of an internal-combustion engine, is compressed.
Compression
The engine cycle during which this process occurs.
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Compression
(Computers) The process by which data is compressed into a form that minimizes the space required to store or transmit it.
Compression
An increase in density; the act of compressing, or the state of being compressed; compaction.
Compression
(automotive) The cycle of an internal combustion engine during which the fuel and air mixture is compressed.
Compression
(computing) The process by which data is compressed.
Compression
(music) The electronic process by which any sound's gain is automatically controlled.
Compression
(astronomy) The deviation of a heavenly body from a spherical form.
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Compression
The act of compressing, or state of being compressed.
Compression
Reduction of the space required for storage (of binary data) by an algorithm which converts the data to a smaller number of bits while preserving the information content. The act of compressing {3}.
Compression
An increase in the density of something
Compression
The process or result of becoming smaller or pressed together;
The contraction of a gas on cooling
Compression
Encoding information while reducing the bandwidth or bits required
Compression
Applying pressure
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