Psion

From organiser to pocket office and the EPOC smartphone lineage.

The museum thread

Why this brand matters

Psion is the missing bridge between the 1980s programmable pocket-computer experiments and the PDA/smartphone era. Its machines make clear that small computers did not have to abandon keyboards, local programmability or week-scale battery life to become personal organisers.

Major machines and families

A historical map of the systems relevant to this museum's story, not merely the models currently emulated.

PeriodMachine / familyWhy it belongs in the storyMuseum status
1984Psion OrganiserOne of the first durable pocket information managers, bridging programmable pocket computers and PDAs.Not yet emulated
1986Organiser IIExpanded the organiser idea with a stronger software/peripheral ecosystem.Not yet emulated
1991Series 3Clamshell palmtop with keyboard, multitasking applications and exceptional battery life.Not yet emulated
1997Series 5ARM-based palmtop with EPOC32, touch screen and an unusually effective miniature keyboard.Not yet emulated
1999–2000Series 5mx / RevoRefined EPOC handhelds whose software lineage fed directly into Symbian.Not yet emulated

Continue the story

Psion in context

No manufacturer exists in isolation: standards, CPUs, software and developer communities repeatedly cross company boundaries.

Research & provenance

Technical specifications and chronology on this manufacturer page are intended to remain traceable to original documentation and established archives. See the source path for this family →