Written-only acronym for "Open Source Software" (see open source. This is a rather ugly
TLA, and the principals in the
open-source movement don't use it, but it has (perhaps
inevitably) spread through the trade press like kudzu.
Node:OSU, Next:OTOH, Previous:OSS,
Up:= O =
OSU /O-S-U/ n. obs.
[TMRC] Acronym for Officially Sanctioned User; a user who is
recognized as such by the computer authorities and allowed to use
the computer above the objections of the security monitor.