A CDE Definition
(PARity file) A file that contains the computed parity bits from a source file. PAR files are generated from Usenet archives that have been broken into multiple files because of file size limitations on news servers. A PAR file would allow the complete archive to be reconstructed if one of the files became corrupt. PAR files can also be used to verify the integrity of the complete archive. See Usenet.
(USEr NETwork) A public access network on the Internet that provides group discussions and group email. It is a giant, dispersed bulletin board that is maintained by volunteers who provide news and mail feeds to other nodes. All Usenet content is "NetNews," and a running collection of messages about a subject is a "newsgroup."
Usenet began in 1979 as a bulletin board between two universities in North Carolina. Today, there are more than 50,000 newsgroups, and news can be read with a news-enabled Web browser, a newsreader application or via Unix-based utilities such as pine, tin and nn. See newsreader, newsgroup, NNTP and Google Groups.
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