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Psion

Founded by David Potter, he originally wanted to call his company PSI (Potter Scientific Instruments) but as PSI was already taken he supposedly said 'It's PSI or nothing', which was shortened into Psion.

In the beginning they produced software for the Sinclair ZX81 and ZX Spectrum machines(Including a flight sim and a Chess game for the ZX81) before launching their first Organiser in 1984.

The launch of the POS models of the Organiser II was their first, and very successful, attempt at an industrial handheld, and some are even in use today almost two decades later. These also became the forerunners of the acclaimed HC and Workabout hand-terminals.

The Org II LZ64 in 1987 was the first of the series to be completely Y2K compliant, and all subsequent machines also complied.

PC-four, a DOS based office package, is probably one of the first complete packages with a single uniform scripting language for the entire package.

The ill-fated MC series laptops introduced in 1989 is said to have driven the company almost to the brink of bankruptcy, and the machines were in sale for only a short period of time.

That all changed with the introduction of the Psion Series 3 PDA in 1991, which redefined what a PDA was and what it should be capable of, with the processing power of a IBM XT, 128 or 256KB RAM, Preemptive multitasking OS, Grapical UI, WYSIWYG wordprocessing, full-featured day-planner, easy printing and removeable storage.

In 1997, Psion again introduced a quantum leap in PDA technology by introducing the Series 5 and their new 32-bit EPOC OS, later renamed Symbian.

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Organiser One1984PDA
Organiser II CM1986PDA
Organiser II LZ641987PDA
S31990PDA
MC4001989Laptop
S3a1993PDA
S51997PDA