Noun
English Wikipedia has an article on:data compressionWikipedia
data compression (uncountable)
(computing) 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
If you use conventional data compression on the [human brain's] genome, you get about 23 million bytes (a small fraction of the size of Microsoft Word), which is a level of complexity we can handle. Ray Kurzweil
Data compression can significantly skew throughput calculations, including generating values greater than 100%. Source: Internet
Data compression The field of digital signal processing relies heavily on operations in the frequency domain (i.e. on the Fourier transform). Source: Internet