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The operating system was called SIBO, which rather unimaginatively stood for SIixteen Bit Operating system. It is a direct ancestor of EPOC, which in turn was
by LeoPanthera 3y ago
The operating system was called SIBO, which rather unimaginatively stood for SIixteen Bit Operating system.
It is a direct ancestor of EPOC, which in turn was later renamed to "Symbian", as made popular on many Nokia devices.
- lproven 3y agoI checked after posting and I was partly wrong! Sorry! The Psion Series 3 range -- 3, 3A, 3C and 3MX -- ran SIBO, later renamed EPOC, later renamed EPOC16, a multitasking GUI OS written for 8086. SIBO = SIxteen Bit Organizer. Not OS. https://en.wikipedia.org/wiki/Psion_Organiser#Subsequent_hand-held_devices https://en.wikipedia.org/wiki/Psion_Organiser#Subsequent_han... The Psion 5 range ran the later and largely unrelated EPOC32, a native ARM OS written in C++ which later became Symbian. But SIBO did not become Symbian. EPOC 5, later EPOS32, did. There was even more renaming than I realised.