Graphics Interchange Format


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graphics interchange format

[¦graf·iks ′in·tər‚chānj ‚fȯr‚mat]
(computer science)
Common file format for compressed graphic images on the World Wide Web that is limited to 256 colors. Abbreviated GIF.

Graphics Interchange Format

(graphics, file format)
/gif/, occasionally /jif/ (GIF, GIF 89A) A standard for digitised images compressed with the LZW algorithm, defined in 1987 by CompuServe (CIS).

Graphics Interchange Format and GIF are service marks of CompuServe Incorporated. This only affects use of GIF within Compuserve, and pass-through licensing for software to access them, it doesn't affect anyone else's use of GIF. It followed from a 1994 legal action by Unisys against CIS for violating Unisys's LZW software patent. The CompuServe Vice President has stated that "CompuServe is committed to keeping the GIF 89A specification as an open, fully-supported, non-proprietary specification for the entire on-line community including the World-Wide Web".

Filename extension: .gif.

File format.

GIF89a specification.

See also progressive coding, animated GIF.
References in periodicals archive ?
CGM now joins Graphics Interchange Format (GIF) and Joint Photographic Experts Group (JPEG) as the only IETF-approved image types on the Internet.
4 service for CompuServe members include faster file transfers and more rapid online display of Graphics Interchange Format (GIF TM) images, resulting in lower connect-time charges.
WinCIM has a built-in decoder for the Graphics Interchange Format (GIF), the CompuServe-developed standard for platform-independent exchange of online information service graphics images.
During this process, Cyberleaf takes documents created with all major word processing and graphics applications and converts them simultaneously to HyperText Markup Language (HTML) and Graphics Interchange Format (GIF), the file formats that Mosaic displays and which are considered Internet standards.
Although we can leave the technologically esoteric definitions of random access memory and graphics interchange formats to the IT departments, risk managers should keep up with the terms that could make their CEOs liable from both design and maintenance perspectives on their company's Web site.