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[[File:Dyalog small.png|thumb|right|Dyalog's logo, based on the [[glyph]]s <syntaxhighlight lang=apl inline>⊃∨∧⌊○⊂</syntaxhighlight><ref>[[Adám Brudzewsky]]. Message {{M|59999223}} in the [[APL Orchard]], quoting CEO [[Gitte Christensen]]. 2021-12-28.</ref>]] | |||
[[File:Dyalog head office.jpg|thumb|right|Dyalog's head office]] | [[File:Dyalog head office.jpg|thumb|right|Dyalog's head office]] | ||
'''Dyalog Ltd.''' (originally Dyadic Systems Ltd.) is the vendor for [[Dyalog APL]] and organiser of the [[Dyalog user meeting]]. Founded as an APL consultancy, Dyadic also became a reseller of [[IBM]] hardware but is now supported primarily by sales of Dyalog APL. | |||
== History == | == History == | ||
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=== Dyadic Systems consulting === | === Dyadic Systems consulting === | ||
Dyadic Systems was formed in 1976 by Ted Hare | Dyadic Systems was formed in 1976 by manager and administrator Phil Goacher with sales lead Ted Hare and APL experts David Crossley, [[Geoff Streeter]], and John Stembridge, all from the APL group at Atkins Computing, which was part of [[wikipedia:Atkins (company)|WS Atkins]] and a [[time-sharing]] provider.<ref>[[Geoff Streeter]]. [https://www.dyalog.com/blog/2018/03/phil-goacher-05-11-40-09-03-18/ "Phil Goacher (05-11-40 – 09-03-18)"]. Dyalog blog. 2018-03-29.</ref> Targetting large companies and especially [[wikipedia:Rank Xerox|Rank Xerox]], Dyadic aimed "to establish a dominant position in a small part of the market based on a reputation for excellence" promoted by "excellent salaries and working conditions", according to its initial prospectus.<ref>[http://archive.vector.org.uk/art10013840 "Dyadic Systems Limited: A Prospective Computing Consultancy"]. 1976.</ref> Because it was not tied to a particular vendor, the company's employees gained experience with many APL dialects. Of these, the most used were [[SHARP APL]], [[APL*PLUS]], and [[Sigma APL]], but Dyadic also worked with APLs from [[IBM]], [[wikipedia:Digital Equipment Corporation|DEC]], [[wikipedia:Honeywell|Honeywell]], [[wikipedia:Burroughs Corporation|Burroughs]], and others, and some non-APL languages. IBM's promotion of [[VS APL]] as a platform became another source of demand for APL consulting.<ref name="taylor">Stephen Taylor. [http://archive.vector.org.uk/art10013790 "How we got here"]. [[Vector journal]] Volume 23 special supplement "Dyalog at 25". 2008-09.</ref> | ||
During this period Dyadic hired Pauline Brand and [[Pete Donnelly]]. | During this period Dyadic hired Pauline Brand, and [[Pete Donnelly]] of [[wikipedia:W. H. Smith|W. H. Smith]].<ref name="donnelly">[[Peter Donnelly]]. [https://www.dyalog.com/uploads/files/apl50/Dyalog%20APL%20A%20Personal%20History.pdf "Dyalog APL: A Personal History"].</ref> | ||
=== Dyalog APL === | === Dyalog APL === | ||
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[[Dyalog APL]] was released at the [[APL83|1983 APL Conference]] in Washington, D.C., a venue it shared with MicroAPL's [[APL.68000]] and [[STSC]]'s [[APL*PLUS/PC]]. Initial sales were slow due to the obscurity at the time of the nested array model, Unix operating system, and Zilog system in addition to Dyalog APL's poor [[performance]] relative to other APLs exhibited. | [[Dyalog APL]] was released at the [[APL83|1983 APL Conference]] in Washington, D.C., a venue it shared with MicroAPL's [[APL.68000]] and [[STSC]]'s [[APL*PLUS/PC]]. Initial sales were slow due to the obscurity at the time of the nested array model, Unix operating system, and Zilog system in addition to Dyalog APL's poor [[performance]] relative to other APLs exhibited. | ||
[[File:DyalogV5.0FrontCover.png|thumb|right|Dyalog version 5.0 front cover (1987)]] | |||
=== Purchase by Lynwood === | === Purchase by Lynwood === | ||
In October 1983, Dyadic Systems, suffering both from decreasing consulting profits and poor sales of Dyalog APL, was purchased by computer terminal manufacturer Lynwood Scientific Developments Limited. Dyadic was allowed to maintain Dyalog APL under Lynwood for the next seven years despite continuous losses. Lynwood was acquired in 1988 by [[wikipedia:Hunting plc|Hunting plc]]. | In October 1983, Dyadic Systems, suffering both from decreasing consulting profits and poor sales of Dyalog APL, was purchased by computer terminal manufacturer Lynwood Scientific Developments Limited. Dyadic was allowed to maintain Dyalog APL under Lynwood for the next seven years despite continuous losses. Lynwood was acquired in 1988 by [[wikipedia:Hunting plc|Hunting plc]]. | ||
During this period Dyalog APL was ported to a large number of UNIX systems. While sales remained low, [[wikipedia:SimCorp| | During this period Dyalog APL was ported to a large number of UNIX systems. While sales remained low, [[wikipedia:SimCorp|SimCorp]] began working with Dyalog in 1985. SimCorp remains a major user of Dyalog APL. | ||
In 1986, Dyadic began to sell UNIX hardware to be used with their APL implementation, including the [[IBM]] 6150 in July of that year. Pauline Brand directed Dyadic's hardware division, a position she would maintain until its sale in 2002. [[wikipedia:British Airways|British Airways]] was one client and eventually expanded its use of UNIX along with its relationship with Dyadic. In 1987 Dyalog APL for the 6150 became an IBM Vendor Logo product available directly from IBM, despite being in direct competition with IBM's [[APL2]]. | In 1986, Dyadic began to sell UNIX hardware to be used with their APL implementation, including the [[IBM]] 6150 in July of that year. Pauline Brand directed Dyadic's hardware division, a position she would maintain until its sale in 2002. [[wikipedia:British Airways|British Airways]] was one client and eventually expanded its use of UNIX along with its relationship with Dyadic. In 1987 Dyalog APL for the 6150 became an IBM Vendor Logo product available directly from IBM, despite being in direct competition with IBM's [[APL2]]. | ||
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Dyadic added support for Dyalog APL on the [[wikipedia:SunOS|Sun]] operating system and IBM's [[wikipedia:IBM RISC System/6000|RS/6000]] in 1990, which led to a growing user base in [[wikipedia:New York City|New York]] consisting of financial companies. | Dyadic added support for Dyalog APL on the [[wikipedia:SunOS|Sun]] operating system and IBM's [[wikipedia:IBM RISC System/6000|RS/6000]] in 1990, which led to a growing user base in [[wikipedia:New York City|New York]] consisting of financial companies. | ||
In 1991 [[John Daintree]] was hired to begin work on a graphical user interface, supporting the [[system function]] < | In 1991 [[John Daintree]] was hired to begin work on a graphical user interface, supporting the [[system function]] <syntaxhighlight lang=apl inline>⎕WC</syntaxhighlight>. | ||
Also in 1991, Dyadic began collaborating with George Kunzle on the PC program which would later be named KPS (Kunzle Planning System). The two lead developers of KPS were Guy Haddleton and [[Morten Kromberg]]. | Also in 1991, Dyadic began collaborating with George Kunzle on the PC program which would later be named KPS (Kunzle Planning System). The two lead developers of KPS were Guy Haddleton and [[Morten Kromberg]], and the product was soon sold to Haddleton's [[Adaytum Software]]. | ||
In 2000, [[wikipedia:Microsoft|Microsoft]] contacted Dyadic systems to ask for their participation in the project that would later be called [[.NET]]. Dyadic responded positively and | In 2000, [[wikipedia:Microsoft|Microsoft]] contacted Dyadic systems to ask for their participation in the project that would later be called [[.NET]]. Dyadic responded positively, and [[John Daintree]] began collaborating with Microsoft employees both on the design of .NET and on Dyalog support for it. | ||
=== Dyalog Limited === | === Dyalog Limited === | ||
In 2002 the software side of Dyadic Systems separated from the company, taking its current name Dyalog Ltd., and in 2003, the remainder of Dyadic Systems, then purely a hardware vendor, was sold to Syan Ltd. Following the separation, Dyalog had only five employees: [[John Scholes]], [[Peter Donnelly]], [[John Daintree]], [[Geoff Streeter]], and support staff Vincent Chan. The company maintained consistent profits despite its small size. | In 2002 the software side of Dyadic Systems separated from the company, taking its current name Dyalog Ltd., and in 2003, the remainder of Dyadic Systems, then purely a hardware vendor, was sold to Syan Ltd. Following the separation, Dyalog had only five employees: [[John Scholes]], [[Peter Donnelly]], [[John Daintree]], [[Geoff Streeter]], and support staff Vincent Chan. The company maintained consistent profits despite its small size. | ||
In 2003, on news that the [[APL conference]] would no longer be held yearly, Dyalog held the first of its [[Dyalog user meeting|user meeting]]s.<ref>Adrian Smith. [http://archive.vector.org.uk/art10009060 "Dyalog APL 2003 Conference"]. [[Vector journal]] volume 20 issue 2. 2003-10.</ref> | |||
=== Takeover by Adaytum employees === | === Takeover by Adaytum employees === | ||
In 2004, Donnelly approached [[ | In 2004, Donnelly approached [[Gitte Christensen]] and [[Morten Kromberg]] of Insight Systems (recently split from [[Adaytum Software]]) to ask them to take over management of the company. Together Insight, [[wikipedia:SimCorp|SimCorp]], and APL Italiana purchased full ownership of Dyalog, and the duo from Denmark began leadership on 7 April 2005.<ref>[http://archive.vector.org.uk/art10014220 "New Management at Dyalog Ltd."]. [[Vector journal]] Volume 21 No. 2. 2005-02.</ref> Christensen became CEO and Kromberg became CTO. Both hold the same roles today, although Kromberg served as CXO from 2015 to 2019 while [[Jay Foad]] was CTO. | ||
In March 2007, Dyalog's growing team moved to its current office in [[wikipedia:Bramley, Hampshire|Bramley, Hampshire]]. The office, a restored barn including original oak beams, was chosen in part for its large windows with a view of a nearby wheat field.<ref>[http://archive.vector.org.uk/art10011430 News from sustaining members]: Country Life. [[Vector journal]] volume 23 issue 1. 2008-01.</ref> | |||
Employees hired during the period of Insight management include [[Dan Baronet]], [[Roger Hui]], [[Jay Foad]], [[Brian Becker]], [[Adám Brudzewsky]], and [[Aaron Hsu]]. [[Nick Nickolov]] and [[Marshall Lochbaum]] worked at the company briefly, for two and three years respectively. | |||
[[File:Dyalog Ducks.png|thumb|right|Dyalog ducks]] | [[File:Dyalog Ducks.png|thumb|right|Dyalog ducks]] | ||
== The Dyalog duck == | == The Dyalog duck == | ||
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Dyalog arranges several recurring events (for dates see Dyalog's [https://www.dyalog.com/dates-for-your-diary.htm Event calendar]): | Dyalog arranges several recurring events (for dates see Dyalog's [https://www.dyalog.com/dates-for-your-diary.htm Event calendar]): | ||
* [ | * [[APL Problem Solving Competition]] | ||
* [[Dyalog user meeting]] | * [[Dyalog user meeting]] | ||
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* [https://functionalconf.com/ FunctionalConf] | * [https://functionalconf.com/ FunctionalConf] | ||
== References == | |||
<references/> | |||
{{APL development}}[[Category:Vendors]] | {{APL development}}[[Category:Vendors]] | ||