(TGA) The Truevision Targa Graphics Adaptor file format. The TGA format is a common bITmap file format for storage of 24-bIT images. IT supports colourmaps, alpha channels, compression and comments. Filename extension: .tga. More information is available from Truevision and {The Graphics File Format Page (http://www.dcs.ed.ac.uk/~mxr/gfx/)}. [What does IT have to do wITh graphics adaptors?] (1997-08-07)