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Psion PLC (LSE: PON) is a consumer hardware company formed in 1980 that developed the Psion Organiser as well as a whole range of more advanced, clamshell-design Personal Digital Assistants. Psion closed or disposed of all its previous operations and is now focused, through its Psion Teklogix operation, on rugged mobile computing solutions. Its operations are based in Canada but its head office is in London. It is listed on the London Stock Exchange and was once a constituent of the FTSE 100 Index.

Psion's operational business, Psion Teklogix, was formed in September 2000 from a merger of Psion and Canadian-based Teklogix Inc. and is a global provider of solutions for mobile computing and wireless data collection. The Group's products and services include rugged mobile hardware, secure wireless networks, robust software, professional services and exceptional support programs. Psion Teklogix works with its clients in the area of new and emerging technologies, including image capture, voice recognition and RFID. Psion Teklogix has customers in more than 80 countries around the world, and over 36 sales and support offices in 23 countries.



Early development

Psion was established in 1980 as a software house with a close relationship with Sinclair Research. The company developed games and other software for the ZX81 and ZX Spectrum home computers, released under the Sinclair/Psion brand. Psion’s games for the ZX Spectrum included Chess, Chequered Flag, Flight Simulator and the Horace series.[1]

The company name means "Potter Scientific Instruments", after the company's founder, David Potter. The acronym PSI was already in use elsewhere in the world so ON was added to make the name PSION unique. David Potter remained a managing director until 1999 and is still chairman of the company.

In early 1983, Sinclair approached Psion regarding the development of a suite of office applications for the forthcoming Sinclair QL personal computer. Psion were already working on a project in this area and the QL was launched in 1984, bundled with Quill, Archive, Abacus and Easel; respectively a word processor, database, spreadsheet and business graphics application. These were later ported to MS-DOS, collectively called PC-Four, or Xchange in an enhanced version.[1]

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