Daniel L. Murphy is an American
computer scientist
A computer scientist is a person who is trained in the academic study of computer science.
Computer scientists typically work on the theoretical side of computation, as opposed to the hardware side on which computer engineers mainly focus (al ...
notable for his involvement in the development of
TECO (an early text editor and programming language), the operating systems
TENEX and
TOPS-20, and
email
Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronic ( digital) version of, or counterpart to, mail, at a time when "mail" meant ...
.
Biography
Murphy attended
MIT from 1961 and graduated in 1965.
In 1962 he created the text editor
Text Editor and Corrector
TECO (), short for ''Text Editor & Corrector'',"A powerful and sophisticated text editor, TECO (Text Editor and Corrector) ... is both a character-oriented text editor and a programming language, that was developed in 1962 for use on Digital Equip ...
(TECO), later implemented on most of the
PDP computers.
He also developed a simple software
demand paging system in software for the PDP-1 while at MIT.
Murphy joined
Bolt, Beranek and Newman BBN in 1965. There he used an
SDS 940 computer running the
Berkeley Timesharing System, which provided page
memory management in hardware.
When the
PDP-10
Digital Equipment Corporation (DEC)'s PDP-10, later marketed as the DECsystem-10, is a mainframe computer family manufactured beginning in 1966 and discontinued in 1983. 1970s models and beyond were marketed under the DECsystem-10 name, especi ...
was announced, he was one of the architects of the
TENEX operating system developed for the custom paging hardware designed at BBN.
As part of the development of TENEX, Murphy and
Ray Tomlinson
Raymond Samuel Tomlinson (April 23, 1941 – March 5, 2016) was an American computer programmer who implemented the first email program on the ARPANET system, the precursor to the Internet, in 1971; It was the first system able to send mail be ...
wrote the original
e-mail program.
In October 1972, he joined
Digital Equipment Corporation
Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president unt ...
where he first worked as a contractor porting TENEX to the KI10 model of the PDP-10 family. On January 2, 1973, he joined DEC as an employee, heading the team responsible for the development of the
TOPS-20 operating system, an evolution of TENEX for the newer models of the PDP-10 family. TOPS-20 was first marketed in 1976 on the
DECSYSTEM-20.
References
Further reading
*
Daniel G. Bobrow
Daniel Gureasko Bobrow (29 November 1935 – 20 March 2017) was an American computer scientist who created an oft-cited artificial intelligence program STUDENT (computer program), STUDENT, with which he earned his PhD., worked at BBN Technologies ( ...
, Jerry D. Burchfiel, Daniel L. Murphy,
Raymond S. Tomlinson,
TENEX, A Paged Time Sharing System for the PDP-10' (''Communications of the ACM'', Vol. 15, pp. 135–143, March 1972)
*
External links
Daniel Murphy's HomepageTECO, TENEX, and TOPS-20 Papers and Pictures
Living people
American computer scientists
Massachusetts Institute of Technology alumni
Year of birth missing (living people)
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