Launched in 1984 by the British company Psion, the Psion Organiser was
the first electronic agenda. Later on, Psion launched the Psion Series
3 and Series 5, and the company expanded internationally. In 2000, the
various models (Series 7, Series 5mx, Revo, Revo Plus) competed with
the Palm Pilot and the Pocket PC. With fewer sales, the company decided
to diversify its activities. Following the acquisition of Teklogix,
Psion Teklogix was created in September 2000 to develop wireless mobile
solutions for businesses. Psion Software was founded in 2001 to develop
software for the new generation of mobile devices using the Symbian OS
platform, for example the smartphone Nokia 9210, launched the same
year.