
1) Computer file format
Found on
https://www.crosswordclues.com/clue/fourcc

A FourCC (literally, four-character code) is a sequence of four bytes used to uniquely identify data formats. The concept originated in the OSType scheme used in the Macintosh system software and was adopted for the Amiga/Electronic Arts Interchange File Format and derivatives. The idea was later reused to identify compressed data types in QuickTi...
Found on
http://en.wikipedia.org/wiki/FourCC

A four character code that uniquely identifies a video data stream format. A video player will look up the FourCC code then look for the codec associated to the code in order to play the associated video stream. This idea was used in the IFF multimedia format developed by Electronic Arts for the Amiga in the early 1980s. This file format was copied...
Found on
http://www.videohelp.com/glossary?F
No exact match found.