Operating Systems Database


Total OS in database (28 March 2024) : 2765
Corresponding OS from query : 85

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Name
Year
Description Platform Company Link
VMiX-x86
2000s
DOS extender that adds Unix like multi-user capabilities. Version 3.0 will be DPMI compliant and will use a new portable microkernel named 'BABy'.
-
-
V
1981
Discontinued microkernel operating system that was developed by faculty and students in the distributed systems group at Stanford University.
Sun workstations, MicroVAX workstations
Stanford University, USA
V2_OS
1990s
Operating system focused on speed for projects like real-time video serving, etc.
-
V2 Lab, Netherlands
Vapour
1990s
Project to build out a Lisp-based OS based on a persistent object store and has quite a few other interesting principles.
-
Australia
VAX VMM
1988
Virtual-machine monitor. TCSEC A1-class, VMM for VAX computers.
DEC VAX
DEC, USA
-
VAX/VMS
1978c
Standard operating system for DEC VAX. Based on RSX-11.
DEC VAX
USA
-
VAXELN
1984<
Realtime object-oriented OS for the MicroVAX.
DEC MicroVAX
USA
-
velOSity
1990s
Real-time operating system.
Power Architecture, ARM/XScale, MIPS, x86/Pentium, ColdFire, Blackfin, OMAP, DaVinci
Green Hills Software, USA
VENIX (5 versions)
1983
Discontinued version of the Unix operating system for low-end computers.
DEC PRO-350 (PDP-11 comp.), DEC Rainbow 100, IBM PC
VenturCom, USA
VENUS
1972
Experimental OS for a modified Interdata minicomputer, based on matching the computer architecture to the operating system.
Interdata minicomputers
Barbara Liskov, USA
-
vEOS
2010s
Platform release of EOS that is supported on Amazon Web Service (AWS), Microsoft Azure and other public clouds.
-
Arista, USA
VERSAdos
1978c
MS-DOS compatible system for 68000.
68000
Motorola, USA
-
VINO
1994c
Operating system built of reusable, replacable components that can be organized by the end-user, even code running in kernel mode.
-
Harvard University, USA
Virtual Memory System (VMS)
1977
DEC's proprietary operating system originally produced for its VAX minicomputer. Renamed "OpenVMS" around version 5.5.
DEC VAX
DEC, USA
-
Visi On
1983
First GUI for early PC machines. Not commercially successful.
IBM PC compatibles
VisiCorp, USA
Visopsys
2001
Visual Operating System. The operating system is licensed under the GNU GPL.
IA-32
Andy McLaughlin, Canada
VM/370
1972
Virtual Machine Facility/370. Virtual memory operating system. To assist customers in migration from OS/360 to OS/VS.
IBM System/370
IBM, USA
VM/BSEPP
1972
Virtual Machine/Basic Extended Product. Functional ehancement to VM/370.
IBM System/370
IBM, USA
-
VM/ESA
1990
Virtual Machine / Extended System Architecture, added 31-bit addressing to VM series.
IBM System/370
IBM, USA
VM/PC
1984<
Version of VM/370 for the PC/370.
IBM System/370
IBM, USA
-
VM/SEPP
1972
Virtual Machine/Extended Product. Functional ehancement to VM/370.
IBM System/370
IBM, USA
-
VM/SP
1980
Virtual Machine/System Product.
IBM System/370
IBM, USA
-
VM/XA
1987
VM/eXtended Architecture for System/370 with extended virtual memory.
IBM System/370
IBM, USA
VM/XA MA
1984
Virtual Machine/Extended Architecture Migration Assistance. Tool to assist in migration from MVS/370 to MVS/XA.
IBM System/370
IBM, USA
-
VM/XA SF
1985
Virtual Machine/Extended Architecture System Facility. Allow the machine to provide execution in the virtual-machine environment of most of the instructions (including many privileged instructions) and most of the facilities (such as dynamic address translation) of both the System/370 and the 370-XA architectures.
IBM System/370
IBM, USA
-
VM/XA SP
1988
Virtual Machine/Extended Architecture System Product.
IBM System/370
IBM, USA
-
VM2000
1975
Hypervisor from Fujitsu (formerly Siemens Nixdorf Informationssysteme) designed specifically for use with the BS2000 operating system. It is an EBCDIC-based operating system.
Siemens BS2000
Siemens, Germany
-
VME (4 versions)
1973
Virtual Machine Environment. Mainframe operating system. Implementation language S3 (ALGOL 68).
ICL 2900 Series, ICL Series 39 mainframes
ICL, UK
VMiX x86
2000s
New Version of this Multiuser DOS, originally introduced in 1984, The design of VMiX has changed to allow it to migrate from IA32 architectures to the newer AMD64 and IA64 environments.
x86
SysDev, USA
VMOS
1968c
Virtual Memory Operating System. Timesharing OS for the RCA Spectra 70.
RCA Spectra 70
RCA, USA
-
VMS (8 versions)
1977
Originally by DEC and HP now by VMS Software Inc. for the VAX mini-computer range, Alpha and Intel Itanium i2 and i4; later renamed OpenVMS.
DEC VAX-11
DEC, USA
-
VORTEX
1974<
Omnitasking realtime executive for Varian minicomputers.
Varian minicomputers
USA
-
VOS (1)
1973<
Virtual machine OS running on the Michigan Terminal System.
Michigan Terminal System
USA
-
VOS (2)
1984<
Operating System for Harris 600, 700, 800 computers.
Harris 600, 700, 800
USA
-
VOS (3)
1980s
Virtual Operating System. Proprietary operating system running on Stratus Technologies fault-tolerant computer systems. With strong influence from Multics.
i860, x86, PA-RISC, 68000
Stratus Technologies, USA
VOS0
1978
Operating system for HITAC L series distributed processing computers.
Hitachi HITAC L-330
Hitachi, Japan
VOS1 (3 versions)
1976
Operating system for lower models in Hitachi's HITAC M series of general-purpose computers, was the second OS in the M series following VOS2.
Hitachi HITAC M series
Hitachi, Japan
-
VOS2
1975
Was the first OS for the HITAC M series, which was a series of Hitachi's general-purpose computers.
Hitachi HITAC M series
Hitachi, Japan
-
VOS3 (4 versions)
1977c
Virtual-storage Operating System 3. For its IBM-compatible mainframes, based on IBM's MVS.
Hitachi HITAC M series
Hitachi, Japan
-
VOSK
1988
Small/medium OS for M-620, M-630 and M-640.
Hitachi HITAC M-620, M-630 and M-640
Hitachi, Japan
VOSK/FS
1995
Replaced the department computer operating system VOSK, was developed as a mid-range total management server with the features of a database server, a computing server, and a management server.
Hitachi MP5600 / MP5400
Hitachi, Japan
VPS/VM
1977
Virtual Processing System/Virtual Machine. Was an operating system that ran on IBM System/370 – IBM 3090 computers at Boston University in general use from 1977 to around 1990, and in limited use until at least 1993.
IBM System/370, IBM 3090
IBM, USA
-
VRTX
1981
Versatile Real-Time Executive. Real-time operating system suitable for both traditional board-based embedded systems and SoC architectures. It has been superseded by the Nucleus RTOS.
ARM, MIPS, PowerPC, RISC
Mentor Graphics, USA
VRX
1970s
Virtual Resource eXecutive. Proprietary operating system on the NCR Criterion series, and later the V-8000 series of mainframe computers manufactured by NCR during the 1970s and 1980s. It replaced the B3 Operating System.
NCR Criterion, V-8000 series
NCR, USA
VS
1980s
Operating system for Wang VS series systems.
Wang VS
Wang Laboratories, USA
-
VS/9
1968c
Successor to RCA TSOS. Discontinued computer operating system available for the UNIVAC Series 90 mainframes during the late 1960s through 1980s.
UNIVAC Series 90 mainframes
Sperry UNIVAC, USA
VS-1
1972
IBM Virtual Storage OS. See OS/VS1.
-
IBM, USA
-
VS-2
1972
IBM Virtual Storage OS. See OS/VS2.
-
IBM, USA
-
VSE/ESA
1991
DOS/VSE extended virtual memory support to 32-bit addresses (Extended System Architecture).
IBM mainframes
IBM, USA
VSE/SP
1980s
Program product replacing DOS/VSE and VSE/AF.
IBM mainframes
IBM, USA
VSOS
1975c
Virtual Storage Operating System. Operating system for the Cyber 205 pipelined processor.
Cyber 205
USA
-
VSTa
1990s
Valencia's Simple Tasker. Was an operating system with a microkernel architecture, with all device drivers and file systems residing in userspace mode.
i386, Motorola 68030
-
VTOS
1979
Virtual Technology’s Operating System. The second TRS‑80 Model I operating system.
Tandy TRS-80
Randy Cook, Virtual Technology, USA
VULCAN
1984<
Operating System for Harris computers.
Harris computers
USA
-
VxWorks
1987
Small footprint, scalable, high-performance RTOS for embedded microprocessor based systems.
x86, x86-64, MIPS, PowerPC, SH-4, ARM
Wind River Systems, USA
V-marc Operating System
1985
Operating system on cartridge.
V-mark 88a
V-Marc, USA
-


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