MISCELLANEOUS OPERATING SYSTEMS

This section is reserved for operating systems that could not readily be assigned to any other category.

DJS200/XT1
An OS for the Chinese DJS210 & DJS220 computers. Late 1970s [Zhongxiu et al 1980].
DOS
Generic name used for many operating systems. Disk Operating System. Well known ones include DOS/360, DOS/VS, DOS/3.3, etc.
DSM-11
Database oriented operating system for MUMPS applications on the PDP-11 and VAX. Digital Equipment Corp. [Digital 1984].
IAS
Operating system for larger PDP-11 systems. Real-time, multiuser, or both. Digital Equipment Corp. [Digital 1984].
MODULAR ONE
A Portable, Modular OS at the University of Warwick. Late 1970s [Footit & Whitby-Strevens 1974]
MPX
Multiprogramming Executive. Real-time, multitasking plus batch OS for the IBM 1800. Late 1960s [Harrison et al 1981, Sayres 1971].
MSOS
Mass storage OS supporting real-time plus batch processing for the CDC System 17.
MUSS
OS Designed to emphasize portability. Late 1970s [Frank & Theaker 1979a, 1979b, Theaker & Frank 1979].
NIDOS
OS for the Nixdorf 8890. Early 1980s? [Computerworld 1984].
OS
Generic name for many Operating Systems. Most often applied to OS/360.
OS/2 and OS/10.
Operating Systems for the MDS Series 21. Early 1980s? [Computerworld 1984].
PICK
Business-oriented OS featuring an integral relational database. Pick Systems. IBM PC-XT and others. Early 1970's [Cook & Brandon 1984a, 1984b, Sisk & VanArsdale 1985].
RBM
Realtime Batch Monitor for Xerox Data Systems minicomputers. Early 1970s [Sayres 1971].
REALITY
Early version of PICK.
RM/COS
Multiuser, multiprocessing OS for 68000. Cobol-based business environment for an abstract C-machine. Ryan-McFarland Corp. Early 1980s [Hindin 1984].
ROS
OS with Ada Support for 8086, 68000. Telesoft [Mini-Micro 1985].
S1
Modular building block OS adaptible to various configurations. 8080, 8086 and 68000 families. Multi-Solutions, Inc. Mid 1980's [Little 1984].
S5
OS for the ALTOS computer (?).
SOLO
Single-User Research Operating System written in Concurrent Pascal, to demonstrate its concurrency mechanisms. Developed by Per Brinch Hansen. Mid 1970s [Brinch Hansen 1976a, 1976b, 1976c].
T.H.E.
Research OS developed by Edsgar Dijkstra. Named for the Technische Hoogeschool (University) at Eindhoven (Holland), where it was developed. Early exploration of program verification techniques. Early layered system design. First implementation of semaphores. Late 1960s [Dijkstra 1968, McKeag et al 1976].
THOTH
Experimental real-time portable OS. Late 1970s [Cheriton et al 1979, Cheriton 1982].
Trio
Operating system for three users, written in Concurrent Pascal, based on SOLO. Late 1970s [Brinch Hansen & Fellows 1980].
TSX
Time-Sharing Executive. Real-time plus batch OS for the IBM 1800. Mid 1960s [Harrison et al 1981].
TSX-PLUS
RT-11 compatible multitasking, multiprocessing OS for PDP-11 family. S&H Computer Systems. Early 1980s [Sherrod & Brenner 1984, Yardley 1985].
Ultimate
Version of PICK. The Ultimate Corp.
VRX
Operating System for NCR 8455. Early 1980s? [Computerworld 1984].
VS
OS for Wang VS series systems. Early 1980s? [Computerworld 1984].
XT1
Operating system for the Chinese DJS210 and DJS220, developed at Nanking University. Multiprogrammed and deadlock-free. Late 1970s [Zhongxiu et al 1980].