QED is a line-oriented computer text editor. Notepad is the standard text editor for Microsoft Windows A text editor is a piece of computer software for editing plain text. ...
Originally written by Butler Lampson and L. Peter Deutsch for the SDS 940, probably in 1966. Ken Thompson later wrote a version for CTSS; this version was notable for introducing regular expressions. QED influenced the classic UNIX text editor ed and the less well known sam by Rob Pike. A Canadian version of QED named FRED (Friendly Editor) was written at the University of Waterloo for Honeywell GCOS systems by Peter Fraser. Butler W. Lampson is a computer scientist, considered to be one of the most significant in the history of the field. ... L. Peter Deutsch is the founder of Aladdin Enterprises and creator of Ghostscript, a free software PostScript interpreter. ...-1... Ken Thompson (left) with Dennis Ritchie (right) Kenneth Thompson (born 1943) is a computer scientist, notable for his work on the UNIX operating system. ... This article is about the MIT Project MAC operating system. ... A regular expression (abbreviated as regexp, regex or regxp) is a string that describes or matches a set of strings, according to certain syntax rules. ... UNIX® (or Unix) is a portable, multi-task and multi-user computer operating system originally developed by a group of AT&T Bell Labs employees including Ken Thompson, Dennis Ritchie and Douglas McIlroy. ... For an overview of letters that look similar to Ð see Ð (disambiguation) Ð (capital Ð, lower-case ð) (or eth, eð or edh, Faroese: edd) is a letter used in Old English (Anglo-Saxon) and present-day Icelandic and Faroese. ... Sam is a text editor under the Plan 9 operating system. ... FRED is a re-implementation of the famous Bell Labs QED line-oriented text editor. ... The University of Waterloo, also known as UW or simply Waterloo, is a medium-sized research-intensive public university in the city of Waterloo, Ontario, Canada. ... GCOS (Genereal Comprehensive Operating System) was originally a quick-and-dirty clone of System/360 disk operating system that emerged from General Electric around 1970. ...
See also: QED for other uses of "QED". QED can mean several different things: Q.E.D. Latin Quod erat demonstrandum, used at the end of mathematical proofs The QED project intended to construct a formalized database of all mathematical knowledge The Qed text editor program Quantum electrodynamics, a field of physics Quantum Effect Devices, a maker of...
External links
History of QED (http://cm.bell-labs.com/cm/cs/who/dmr/qed.html)
The QEDtexteditor was first written by Butler Lampson and Peter Deutsch for the Berkeley time-sharing system on the SDS 940; see their paper in C. #12 (December, 1967).
Ken's CTSSqed adopted from the Berkeley one the notion of multiple buffers to edit several files simultaneously and to move and copy text among them, and also the idea of executing a given buffer as editor commands, thus providing programmability.
A traditional (and maybe the nicest) version of QED was done at the University of Toronto by Tom Duff, Rob Pike, Hugh Redelmeier, and David Tilbrook; it supports multiple buffers, execution of buffers, and regular expressions with back-referencing.
Feeds |
Contact