T-4

T-4 definition - computer

See 100Base-T and DS.



T.4 definition - computer

An ITU standard for Group 3 fax machines that specifies the page dimensions, resolutions and compression scheme. T.4 and T.30, which were introduced in 1980, make up the complete standard for Group 3 fax. See T.6, T.30 and fax.



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