EPOC
\ˈɛpɒk], \ˈɛpɒk], \ˈɛ_p_ɒ_k]\
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A family of graphical operating systemsdeveloped by Psion for portable devices, primarily PDAs.The name EPOC came from epoch, the beginning of an era, but wasbackfitted by the engineers to "Electronic Piece Of Cheese".The first version, later known as EPOC16, was developed in thelate 1980s and early 1990s for Psion's "SIBO" (SIxteen BitOrganisers) devices. All EPOC16 devices feature an8086-family processor and a 16-bit architecture. EPOC16 isa single-user pre-emptive multitasking operating system,written in Intel 8086 assembler language and C anddesigned to be delivered in ROM. It supported a simpleprogramming language called OPL and an IDE called OVAL.EPOC16 was followed by EPOC32 in 1997.
By Denis Howe
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