LEO - Revision history

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	The '''Lyons Electronic Office''' (usually referred to by the acronym, '''LEO''') was a computer built by Lyons, a British chain of cafeterias; the first computer ever built for business applications.		The '''Lyons Electronic Office''' (usually referred to by the acronym, '''LEO'''; later referred to as the '''LEO I''', after follow-ons were built) was a [[computer]] built by Lyons, a British chain of cafeterias; the first computer ever built for business applications.

	It was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. Their work showed the path to the adoption of computers in businesses - the first non-mathematical task to which they had been put.		It was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. Their work showed the path to the adoption of computers in businesses - the first non-mathematical task to which they had been put.

	The design of their first computer~~, retrospectively named the '''LEO I''',~~ was based on the [[EDSAC]]; an engineer from Lyons was seconded to the EDSAC project, and helped build it.		The design of their first computer was based on the [[EDSAC]]; an engineer from Lyons was seconded to the EDSAC project, and helped build it. Like the EDSAC, the LEO used [[delay line]] [[main memory]].

	There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.		There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.

	It was so successful that Lyons set up a subsidiary, [[Leo Computers]], to build more of them.		It was so successful that Lyons set up a subsidiary, [[Leo Computers]], to build more of them.

	~~The increasing capital requirements to build computers eventually resulted in Lyons' computer business being merged with [[English Electric Computers]] in 1963 (Lyons exited in 1964).~~

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	[[Category: Early Computers]]		[[Category: Early Computers]]
			[[Category: Unique Computers]]
	[[Category: Mainframes]]		[[Category: Mainframes]]

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External links: +Designing a computer for data processing

← Older revision		Revision as of 14:07, 14 March 2024
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	* David Caminer, Frank Land, John Aris, Peter Hermon, ''LEO: The Incredible Story of the World's First Business Computer'', McGraw-Hill, New York, 1997		* David Caminer, Frank Land, John Aris, Peter Hermon, ''LEO: The Incredible Story of the World's First Business Computer'', McGraw-Hill, New York, 1997
	* Georgina Ferry, ''A Computer Called LEO: Lyons Tea Shops and the World's First Office Computer'', Fourth Estate, London, 2003		* Georgina Ferry, ''A Computer Called LEO: Lyons Tea Shops and the World's First Office Computer'', Fourth Estate, London, 2003

			==External links==

			* [http://www.cs.man.ac.uk/CCS/res/res02.htm#d Designing a computer for data processing] - personal memories from John Pinkerton, the principal engineer

	[[Category: Early Computers]]		[[Category: Early Computers]]
	[[Category: Mainframes]]		[[Category: Mainframes]]

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← Older revision		Revision as of 04:23, 23 February 2024
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	It was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. Their work showed the path to the adoption of computers in businesses - the first non-mathematical task to which they had been put.		It was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. Their work showed the path to the adoption of computers in businesses - the first non-mathematical task to which they had been put.

	The design of their first computer, retrospectively named the ''LEO I''', was based on the [[EDSAC]]; an engineer from Lyons was seconded to the EDSAC project, and helped build it.		The design of their first computer, retrospectively named the '''LEO I''', was based on the [[EDSAC]]; an engineer from Lyons was seconded to the EDSAC project, and helped build it.

	There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.		There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.
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	It was so successful that Lyons set up a subsidiary, [[Leo Computers]], to build more of them.		It was so successful that Lyons set up a subsidiary, [[Leo Computers]], to build more of them.

	The increasing capital requirements to build computers eventually resulted in Lyons' computer business being merged with [[English Electric Computers]] in 1963 (Lyons exited in 1964)~~; English Electric itself was later merged into [[International Computers Limited]]~~.		The increasing capital requirements to build computers eventually resulted in Lyons' computer business being merged with [[English Electric Computers]] in 1963 (Lyons exited in 1964).

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2024-02-23T00:49:26Z

Forward link to Leo Computers

← Older revision		Revision as of 00:49, 23 February 2024
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	The '''Lyons Electronic Office''' (usually referred to by the acronym, '''LEO''') was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. Their work showed the path to the adoption of computers in businesses - the first non-mathematical task to which they had been put.		The '''Lyons Electronic Office''' (usually referred to by the acronym, '''LEO''') was a computer built by Lyons, a British chain of cafeterias; the first computer ever built for business applications.

			It was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. Their work showed the path to the adoption of computers in businesses - the first non-mathematical task to which they had been put.

	The design of their first computer, retrospectively named the ''LEO I''', was based on the [[EDSAC]]; an engineer from Lyons was seconded to the EDSAC project, and helped build it.		The design of their first computer, retrospectively named the ''LEO I''', was based on the [[EDSAC]]; an engineer from Lyons was seconded to the EDSAC project, and helped build it.
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	There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.		There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.

	The increasing capital requirements to build computers eventually resulted in Lyons' computer business being merged with [[English Electric Computers]] in 1963 (Lyons exited in 1964), English Electric itself was later merged into [[International Computers Limited]].		It was so successful that Lyons set up a subsidiary, [[Leo Computers]], to build more of them.

			The increasing capital requirements to build computers eventually resulted in Lyons' computer business being merged with [[English Electric Computers]] in 1963 (Lyons exited in 1964); English Electric itself was later merged into [[International Computers Limited]].

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2024-02-21T18:06:22Z

Eventually merged with English Electric

← Older revision		Revision as of 18:06, 21 February 2024
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	There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.		There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.

			The increasing capital requirements to build computers eventually resulted in Lyons' computer business being merged with [[English Electric Computers]] in 1963 (Lyons exited in 1964), English Electric itself was later merged into [[International Computers Limited]].

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2023-12-25T12:31:51Z

LEO was ground-breaking for use of computers in business

← Older revision		Revision as of 12:31, 25 December 2023
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	The '''Lyons Electronic Office''' (usually referred to by the acronym, '''LEO''') was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. ~~The design was based on~~ the ~~[[EDSAC]]~~.		The '''Lyons Electronic Office''' (usually referred to by the acronym, '''LEO''') was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. Their work showed the path to the adoption of computers in businesses - the first non-mathematical task to which they had been put.

	There was a public announcement in "Electronic Engineering" of its running in production in April 1954 but it had at that time been under test and doing some government work for 18 months.		The design of their first computer, retrospectively named the ''LEO I''', was based on the [[EDSAC]]; an engineer from Lyons was seconded to the EDSAC project, and helped build it.

			There was a public announcement in "Electronic Engineering" of its running in production in April 1954, but it had at that time been under test and doing some government work for 18 months.

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	* Georgina Ferry, ''A Computer Called LEO: Lyons Tea Shops and the World's First Office Computer'', Fourth Estate, London, 2003		* Georgina Ferry, ''A Computer Called LEO: Lyons Tea Shops and the World's First Office Computer'', Fourth Estate, London, 2003

			[[Category: Early Computers]]
	[[Category: Mainframes]]		[[Category: Mainframes]]

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+Further reading, better cat

← Older revision		Revision as of 13:54, 3 January 2023
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	Lyons Electronic Office was a brave start for a company that ran corner tea shops, they decided in 1949 to investigate the computer for their office functions. The design was based on the [[EDSAC]].		The '''Lyons Electronic Office''' (usually referred to by the acronym, '''LEO''') was a brave and audacious start for a company that ran corner tea shops; they decided in 1949 to investigate the computer for their office functions. The design was based on the [[EDSAC]].

	There was a public ~~anouncement~~ in "Electronic Engineering" of its running in production in April 1954 but it had at that time been under test and doing some government work for 18 months.		There was a public announcement in "Electronic Engineering" of its running in production in April 1954 but it had at that time been under test and doing some government work for 18 months.

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	[[Category:~~Computers~~]]		==Further reading==

			* Peter John Bird, ''LEO: The First Business Computer'', Hasler Publishing, Wokingham, 1994
			Leo : The Incredible Story of the World's First Business Computer
			* David Caminer, Frank Land, John Aris, Peter Hermon, ''LEO: The Incredible Story of the World's First Business Computer'', McGraw-Hill, New York, 1997
			* Georgina Ferry, ''A Computer Called LEO: Lyons Tea Shops and the World's First Office Computer'', Fourth Estate, London, 2003

			[[Category: Mainframes]]

Archivist at 12:34, 24 May 2007

2007-05-24T12:34:51Z

← Older revision		Revision as of 12:34, 24 May 2007
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	Lyons Electronic Office was a brave start for a company that ran corner tea shops, they decided in 1949 to investigate the computer for their office functions. The design was based on the [[EDSAC]]. ~~The~~ public anouncement of its running in production ~~was~~ in April 1954 but it had at that time been under test and doing some government work for 18 months.		Lyons Electronic Office was a brave start for a company that ran corner tea shops, they decided in 1949 to investigate the computer for their office functions. The design was based on the [[EDSAC]].

			There was a public anouncement in "Electronic Engineering" of its running in production in April 1954 but it had at that time been under test and doing some government work for 18 months.

	{{stub}}		{{stub}}

	[[Category:Computers]]		[[Category:Computers]]

← Older revision		Revision as of 23:51, 11 July 2023
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	* Peter John Bird, ''LEO: The First Business Computer'', Hasler Publishing, Wokingham, 1994		* Peter John Bird, ''LEO: The First Business Computer'', Hasler Publishing, Wokingham, 1994
	~~Leo : The Incredible Story of the World's First Business Computer~~
	* David Caminer, Frank Land, John Aris, Peter Hermon, ''LEO: The Incredible Story of the World's First Business Computer'', McGraw-Hill, New York, 1997		* David Caminer, Frank Land, John Aris, Peter Hermon, ''LEO: The Incredible Story of the World's First Business Computer'', McGraw-Hill, New York, 1997
	* Georgina Ferry, ''A Computer Called LEO: Lyons Tea Shops and the World's First Office Computer'', Fourth Estate, London, 2003		* Georgina Ferry, ''A Computer Called LEO: Lyons Tea Shops and the World's First Office Computer'', Fourth Estate, London, 2003

	[[Category: Mainframes]]		[[Category: Mainframes]]