Usenet, possibly from
DEC Slang for a full software distribution, as opposed to a
patch or upgrade. A source software distribution that has been packaged in such a way that it can (theoretically) be unpacked and installed according to a series of steps using only standard
Unix tools, and entirely documented by some reasonable chain of references from the top-level [README file]
?. The more general term distribution
? may imply that special tools or more stringent conditions on the host environment are required.
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