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C News
C News is a news server package, written by Geoff Collyer, assisted by Henry Spencer, at the University of Toronto as a replacement for B News. It was presented at the Winter 1987 USENIX conference in Washington, D.C. Functionally, the operation of C News is very much like that of B News. One major difference was that C News was written with portability in mind. It ran on many variants of Unix and even MS-DOS. The ''relaynews'' program that handled article filing and feeding was carefully optimized and designed to process articles in batches, while B News processed one article per program invocation. The authors claimed that ''relaynews'' could process articles 19 times as quickly as B News. In 1992, Collyer gave C News a new index facility called NOV (or News Overview). This allowed newsreaders to rapidly retrieve header and threading information with relatively little load on the server. Virtually all {{As of, 2004, alt=current news servers continue to use this method ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
News Server
A news server is a collection of software used to handle Usenet articles. It may also refer to a computer itself which is primarily or solely used for handling Usenet. Access to Usenet is only available through news server providers. Articles and posts End users often use the term "posting" to refer to a single message or file posted to Usenet. For articles containing plain text, this is synonymous with an article. For binary content such as pictures and files, it is often necessary to split the content among multiple articles. Typically through the use of numbered Subject: headers, the multiple-article postings are automatically reassembled into a single unit by the newsreader. Most servers do not distinguish between single and multiple-part postings, dealing only at the level of the individual component articles. Headers and overviews Each news article contains a complete set of header lines, but in common use the term "headers" is also used when referring to the News Overv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geoff Collyer
Geoff Collyer (born 1958) is a Canadians, Canadian computer scientist. He is the senior author of ''C News'', a protocol-neutral news transport, and the designer of NOV (computers), NOV, the News Overview database (article index) used by all modern News client, newsreaders. He contributed the code that allowed to convert the Bourne Shell from using the non-portable sbrk to a portable malloc based implementation.http://schilytools.sourceforge.net/bosh.html Bourne Shell project page In the past he worked as a Unix system programmer, but since 1994 he has been living on Plan 9 from Bell Labs, ''Plan 9'' while working at Bell Laboratories. Honors Asteroid 129101 Geoffcollyer, discovered by astronomers at the Jarnac Observatory in Arizona in 2004, was named in his honor. The official was published by the Minor Planet Center on 9 August 2006 (). References External links Geoff Collyers Homepage with publicationsmodified V7 shell sourcemodified V9 shell sourcerecent Plan 9 kern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Spencer
Henry Spencer (born 1955) is a Canadian computer programmer and space enthusiast. He wrote "regex", a widely used software library for regular expressions, and co-wrote C News, a Usenet server program. He also wrote ''The Ten Commandments for C Programmers''. He is coauthor, with David Lawrence, of the book ''Managing Usenet''. While working at the University of Toronto he ran the first active Usenet site outside the U.S., starting in 1981. His records from that period were eventually acquired by Google to provide an archive of Usenet in the 1980s. The first international Usenet site was run in Ottawa, in 1981; however, it is generally not remembered, as it served merely as a read-only medium. Later in 1981, Spencer acquired a Usenet feed from Duke University, and brought "utzoo" online; the earliest public archives of Usenet date from May 1981 as a result. The small size of Usenet in its youthful days, and Spencer's early involvement, made him a well-recognised participant; t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Toronto
The University of Toronto (UToronto or U of T) is a public research university in Toronto, Ontario, Canada, located on the grounds that surround Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution of higher learning in Upper Canada. Originally controlled by the Church of England, the university assumed its present name in 1850 upon becoming a secular institution. As a collegiate university, it comprises eleven colleges each with substantial autonomy on financial and institutional affairs and significant differences in character and history. The university maintains three campuses, the oldest of which, St. George, is located in downtown Toronto. The other two satellite campuses are located in Scarborough and Mississauga. The University of Toronto offers over 700 undergraduate and 200 graduate programs. In all major rankings, the university consistently ranks in the top ten public universities in the world and as the top university ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B News
B News was a Usenet news server developed at the University of California, Berkeley by Matt Glickman and Mary Ann Horton as a replacement for A News. It was used on Unix systems from 1981 into the 1990s and is the reference implementation for the ''de facto'' Usenet standard described in and . Releases from 2.10.2 were maintained by UUNET founder Rick Adams. B News introduced numerous changes from its predecessor. Articles used an extensible format with named headers, first by using labeled equivalents to the A News format. A further refinement in 1983 with News B2.10 was a move to e-mail-compatible headers, to ease message transfers with the ARPAnet. A history database was introduced, allowing articles to be placed in separate directories by newsgroup, improving retrieval speeds and easing the development of separate newsreader programs such as rn. Support was provided for expiring old articles, and control messages (special articles that can automatically cause articles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porting
In software engineering, porting is the process of adapting software for the purpose of achieving some form of execution in a computing environment that is different from the one that a given program (meant for such execution) was originally designed for (e.g., different CPU, operating system, or third party library). The term is also used when software/hardware is changed to make them usable in different environments. Software is ''portable'' when the cost of porting it to a new platform is significantly less than the cost of writing it from scratch. The lower the cost of porting software relative to its implementation cost, the more portable it is said to be. Etymology The term "port" is derived from the Latin '' portāre'', meaning "to carry". When code is not compatible with a particular operating system or architecture, the code must be "carried" to the new system. The term is not generally applied to the process of adapting software to run with less memory on the sam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unix
Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Berkeley (Berkeley Software Distribution, BSD), Microsoft (Xenix), Sun Microsystems (SunOS/Solaris (operating system), Solaris), Hewlett-Packard, HP/Hewlett Packard Enterprise, HPE (HP-UX), and IBM (IBM AIX, AIX). In the early 1990s, AT&T sold its rights in Unix to Novell, which then sold the UNIX trademark to The Open Group, an industry consortium founded in 1996. The Open Group allows the use of the mark for certified operating systems that comply with the Single UNIX Specification (SUS). Unix systems are chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MS-DOS
MS-DOS ( ; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. Collectively, MS-DOS, its rebranding as IBM PC DOS, and a few operating systems attempting to be compatible with MS-DOS, are sometimes referred to as "DOS" (which is also the generic acronym for disk operating system). MS-DOS was the main operating system for IBM PC compatibles during the 1980s, from which point it was gradually superseded by operating systems offering a graphical user interface (GUI), in various generations of the graphical Microsoft Windows operating system. IBM licensed and re-released it in 1981 as PC DOS 1.0 for use in its PCs. Although MS-DOS and PC DOS were initially developed in parallel by Microsoft and IBM, the two products diverged after twelve years, in 1993, with recognizable differences in compatibility, syntax, and capabilities. Beginning in 1988 with DR-DO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Network News Transfer Protocol
The Network News Transfer Protocol (NNTP) is an application protocol used for transporting Usenet news articles (''netnews'') between news servers, and for reading/posting articles by the end user client applications. Brian Kantor of the University of California, San Diego, and Phil Lapsley of the University of California, Berkeley, wrote , the specification for the Network News Transfer Protocol, in March 1986. Other contributors included Stan O. Barber from the Baylor College of Medicine and Erik Fair of Apple Computer. Usenet was originally designed based on the UUCP network, with most article transfers taking place over direct point-to-point telephone links between news servers, which were powerful time-sharing systems. Readers and posters logged into these computers reading the articles directly from the local disk. As local area networks and Internet participation proliferated, it became desirable to allow newsreaders to be run on personal computers connected to local n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XOVER
XOVER is a Network News Transfer Protocol (NNTP) command used to return information from a news server's overview ( NOV) database. The XOVER command is documented in RFC 2980, a specification for Common NNTP Extensions authored by Stan O. Barber in October 2000. A newer version of NNTP, specified in RFC 3977, formalized the XOVER extension with new OVER and LIST OVERVIEW.FMT commands. See also * List of Usenet newsreaders * Usenet newsgroup * News server A news server is a collection of software used to handle Usenet articles. It may also refer to a computer itself which is primarily or solely used for handling Usenet. Access to Usenet is only available through news server providers. Articles and ... References {{reflist Usenet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
