[computing] In computing, DGCA is a freeware compression utility created in 2001 by Tsuruta Shin`ichi. DGCA is also a compressed archive format, the next generation of `GCA`. DGCA has a better compression ratio than ZIP, stronger encryption and Unicode filenames. However, DGCA is not a major compression format. ...
Director-General of Civil Aviation.
Directorate General of Civil Aviation (various countries)