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The complementary term, single-user, is most commonly used when talking about an operating system being usable only by one person at a time, or in reference to a single-user software license agreement. Multi-user operating systems such as Unix sometimes have a single user mode or runlevel available for emergency maintenance. Examples of single ...
Multiuser DOS is a real-time multi-user multi-tasking operating system for IBM PC-compatible microcomputers.. An evolution of the older Concurrent CP/M-86, Concurrent DOS and Concurrent DOS 386 operating systems, it was originally developed by Digital Research and acquired and further developed by Novell in 1991.
A multiseat, multi-station or multiterminal system is a single computer which supports multiple independent local users at the same time. A multi-seat assembly encompassing four "seats", running Linux. A two-seat system using Windows Multipoint Server. A "seat" consists of all hardware devices assigned to a specific workplace at which one user ...
OpenVMS, often referred to as just VMS, [8] is a multi-user, multiprocessing and virtual memory-based operating system.It is designed to support time-sharing, batch processing, transaction processing and workstation applications. [9]
HelenOS – research and experimental operating system; House – Haskell User's Operating System and Environment, research OS written in Haskell and C; ILIOS – Research OS designed for routing; L4 – second generation microkernel; Mach – from OS kernel research at Carnegie Mellon University; see NeXTSTEP
Time-sharing was first proposed in the mid- to late-1950s and first implemented in the early 1960s. The concept was born out of the realization that a single expensive computer could be efficiently utilized by enabling multiprogramming, and, later, by allowing multiple users simultaneous interactive access. [1]
Possibly the earliest preemptive multitasking OS available to home users was Microware's OS-9, available for computers based on the Motorola 6809 such as the TRS-80 Color Computer 2, [8] with the operating system supplied by Tandy as an upgrade for disk-equipped systems. [9] Sinclair QDOS on the Sinclair QL followed in 1984, but it was not a ...
To a user, a distributed OS works in a manner similar to a single-node, monolithic operating system. That is, although it consists of multiple nodes, it appears to users and applications as a single-node. Separating minimal system-level functionality from additional user-level modular services provides a "separation of mechanism and policy ...