Psion 3
Overview
Personal digital assistant
A personal digital assistant , also known as a palmtop computer, or personal data assistant, is a mobile device that functions as a personal information manager. Current PDAs often have the ability to connect to the Internet...
s were made by Psion PLC
Psion PLC
Psion is a designer and manufacturer of rugged mobile handheld computers for commercial and industrial applications. The company is headquartered in London, England with major operations in Mississauga, Ontario, Canada and additional company offices in Europe, the United States, Asia, Latin...
. The four main variants are the Psion Series 3 (1991), the Psion Series 3a (1993), the Psion Series 3c (1996), and the Psion Series 3mx (1998), all sized 165 × 85 × 22 mm. In addition, a Psion Series 3a variant with factory installed software for the Russian language was called a Psion Series 3aR, and Acorn Computers
Acorn Computers
Acorn Computers Ltd. was a British computer company established in Cambridge, England, in 1978. The company produced a number of computers which were especially popular in the UK. These included the Acorn Electron, the BBC Micro, and the Acorn Archimedes...
sold a rebadged version of the Psion Series 3 and 3a marketed as the Acorn Pocket Book and Acorn Pocket Book II.
The Psion Series 3 range is regarded by Scottish writer Charles Stross
Charles Stross
Charles David George "Charlie" Stross is a British writer of science fiction, Lovecraftian horror and fantasy. He was born in Leeds.Stross specialises in hard science fiction and space opera...
as an unsurpassed PDA because of its long battery life (20 to 35 hours), its stable and versatile software, and its durable hardware
Computer hardware
Personal computer hardware are component devices which are typically installed into or peripheral to a computer case to create a personal computer upon which system software is installed including a firmware interface such as a BIOS and an operating system which supports application software that...
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