Dina St Johnston
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Dina St Johnston (née Aldrina Nia Vaughan, 20 September 1930 – 30 June/1 July 2007) was a British computer programmer credited with founding the UK's first
software house A software company is a company whose primary products are various forms of software, software technology, distribution, and software product development. They make up the software industry. Types There are a number of different types of softw ...
in 1959.Simon Lavington
An Appreciation of Dina St Johnston (1930–2007) Founder of the UK's First Software House
The Computer Journal ''The Computer Journal'' is a peer-reviewed scientific journal covering computer science and information systems. Established in 1958, it is one of the oldest computer science research journals. It is published by Oxford University Press on behal ...
(2009) 52 (3): 378-387. doi: 10.1093/comjnl/bxn019


Early life and education

Born Aldrina Nia Vaughan in south London, St Johnston was educated at Selhurst Grammar School for Girls before leaving school at 16 or 17 (accounts vary) to work for the
British Non-Ferrous Metals Research Association The British Non-Ferrous Metals Research Association was a research group in the United Kingdom during the 20th century, bringing together public and privately funded research into metallurgy. The name was abbreviated officially to B.N.F.M.R.A. (th ...
. St Johnston worked and studied part-time, studying at Croydon Polytechnic and later
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before gaining an external
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degree in mathematics.


Early career

In 1953, St Johnston left the British Non-Ferrous Metals Research Association and joined Borehamwood Laboratories of Elliott Brothers (London) Ltd, where she worked in the Theory Division. The company was an early computer company and had produced its first computer in 1950. St Johnston learned to programme at the company and also at the 1954 Cambridge Summer School on Programming and, showing a real flair for programming, began working on EDSAC and the Elliott 400 and 800 series computers. By 1954, St Johnston was responsible for the programming of the Elliott 153
Direction Finding Direction finding (DF), or radio direction finding (RDF), isin accordance with International Telecommunication Union (ITU)defined as radio location that uses the reception of radio waves to determine the direction in which a radio stati ...
(DF) digital computer for the
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and soon after for programming Elliott's own payroll computer; her work was said to have been inventive and structured, but also very accurate, hardly ever requiring 'de-bugging'.


Vaughan Computers

Shortly after her marriage to Andrew St Johnston – head of the Elliott computing department – in 1958, St Johnston (born Vaughan) founded Vaughan Programming Services (VPS) in
Ware Ware may refer to: People * Ware (surname) * William of Ware (), English Franciscan theologian Places Canada * Fort Ware, British Columbia United Kingdom * Ware, Devon *Ware, Hertfordshire * Ware, Kent United States * Ware, Elmore County ...
, Hertfordshire in 1959, performing software contracts, training and hiring additional programmers as needed. On its tenth anniversary in 1969, company literature stated that "VPS was the first registered independent Software unit in the UK (February 1959), that was not a part of a computer manufacturer, not a part of a computer bureau, not a part of a users' organisation and not a part of a consultancy operation." Significant contracts came to St Johnston and VPS, such as programming early nuclear power stations, but in 1970 she branched out into hardware, producing her own computer, the 4M, and the company changed its name to Vaughan Systems and Programming in 1975 to reflect the new area of work. One of the 4M Vaughan computers is in
The National Museum of Computing The National Museum of Computing is a museum in the United Kingdom dedicated to collecting and restoring historic computer systems. The museum is based in rented premises at Bletchley Park in Milton Keynes, Buckinghamshire and opened in 2007. ...
. St Johnston and her company, Vaughan, produced software for companies like the BBC, Unilever, and GEC, flight simulators for the RAF and software that provided real-time information for passengers on British Rail, the type of work for which the company became most well known. The company became well known for transport signalling and display systems.


Later life

In 1996, Vaughan Systems and Programming was sold to Harmon Industries, an American railway signalling company. St Johnston continued programming until the mid-1990s. She retired in 1999 and died on 30 June/1 July 2007.


See also

* Steve Shirley


References

{{DEFAULTSORT:St Johnson, Dina 1930 births 2007 deaths British computer programmers British women in business 20th-century British businesspeople People from London