THEOS
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THEOS, which transcribes to "God" in Greek, is an operating system which started out as OASIS, a microcomputer operating system for small computers that use the Z80 processor. Originally written in the late 1970s by Timothy S. Williams as a low-cost alternative to the more expensive mini- and mainframe- computers that were popular in the day, OASIS provided time-sharing multiuser facilities to allow several users to utilise the resources of one computer. Remember that in the 1970s even very basic computers cost many thousands of dollars. THEOS is specifically aimed at small business users.
The language distributed with THEOS was THEOS Multi-User Basic.
When the operating system was launched for the IBM Personal Computer/AT in 1982, the decision was taken to change the name to THEOS, short for THE Operating System.
THEOS was introduced in Europe by Fujitsu and other hardware manufacturers 30 years ago. The 'current' version is THEOS Corona Commercial Release 6, which was released in December 2008. The current Windows Workstation Client (as of May 2009) is version 3.16 from July 2003.
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