- Multi-user, 32-bit OS, mainly for business. Many add-on features available: multi-user DOS/Windows and TCP/IP support for setting up web servers. Since its start in the late 1970s as OASIS, it has steadily improved and added options while keeping its user friendly status.
Entry-Master Systems, Inc. - - Makes access control, revenue control, and security management software. THEOS-based, integrated with Windows 3.x/95/98-NT/XP, has Web interface.
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