NAME:

DEVELOPER / OWNER:

LATEST RELEASE:

DESCRIPTION:

2K

University of Illinois / University of Madrid

?

Distributed, reflective, component-based, adaptable operating system.

400/800 OS

Atari

?

Os for the Atari 400 and 800

4th Axis

Various

?

Using the VoiD kernel . 32-bit promoted as a hacker's os.

A

AdaOS

Various

?

An os written in Ada

Aegis

MIT

?

Os based upon the idea of an "ExoKernel". There is no runtime kernel.

AIOS

Various

?

Project to develop an Artificial Intelligence OS.

AIX

IBM

5L

Unix clone from IBM for PPC.

Alliance OS

Various

?

Based on a modified version of the Stanford Caching Model. Freeware.

Amber

Various

?

PowerPC OS, sourcecode compatible with Amiga.

AmigaOS

Amiga

4.0

Kickstart ROM 3.1 and Workbench worked only on 680x0. Current version requires PPC.

Amoeba

Andy Tanenbaum

?

Free distributed OS for educational and research users.

AMX

Kadak Products Ltd.

AMX Multitasking Kernel, first released in 1980

Android

Google Inc.

?

Developed for the Google G1 phone and other smartphones

Antares OS

Kinfira

?

Intended to become a microkernel type of design, now dead.

AOS/VS

Data General

?

Mainframe os from the 1970's

Aperios

Sony

?

Reflective Object Oriented os for digital devices like Sony set-top-box and Aibo e-dog.

Apostle

J . Spencer Seidel

?

Freeware os.

Apple DOS

Apple

3.3

Meant for the Apple IIe.

ARGON

Alaric B. William

?

Os dynamically compiles high-level languages to machine code as needed

Ariel

Microware Systems Corporation

1.2

Lightweight embedded real-time OS for M.CORE, ARM/Thumb, SH, and x86

AROS

Various

1.12

Amiga Research OS, group of almost 100 developers try to rewrite Amigaos

ARTS

?

?

Mach-based

AtariDos

Atari

2.5

Dos clone

Athene

?

3.3

Runs hosted on Windows and Linux and also non hosted.

AtheOS

Kurt

0.1.2

Freeware multithreaded OS for x86, with a modern gui.

AT&T Unix

AT&T

?

Unix clone from AT&T

A/UX

Apple

3.0

Unix clone from Apple

B

Bastille Linux

Various

?

Secure Linux

BB/M

?

?

Multi-user os, Basic alike.

BeIA

Palm (Be Inc.)

?

Embedded version of BeOS for Internet Appliances.

BeOS

Palm (Be Inc.)

5.0

SMP "multimedia" OS for PPC and x86. Freeware for consumers.

Beowulf

Various

?

Parallel Linux clusters project.

Blackberry OS

RIM

4.5

OS meant for the Blackberry smartphone

BlueBottle

?

?

based on the Active Object System (AoS) kernel.

BlueOS

Various

?

BeOS Clone based on Linux.

BOSS

?

?

Similar to BB/M.

BPMK

?

?

BPMK is just the name of the kernel

BRiX OS

Brand Huntsman

?

Freeware os with modular functions that can be dynamically called by other functions.

BSDi

Berkeley Software Design Inc.

3.1

Unix clone

BSO/RTOS

Boston Systems Office

?

Small real-time OS for Z80, 6809, x86, 68k.

BTOS

Unisys (C.T. Inc.)

II 3.x

Similar to CTOS for Clusters.

BW-dos

Jiri Bernasek

1.30

Freeware Dos clone

C

CadOS

?

?

Amiga related os for demo programmers

CAOS

?

?

The AmigaDOS that wasn't finished in time so Tripos had to be used.

CAPS-11

?

?

Cassette Based Programme development System for PDP11

Casablanca OS

MacroSystem

2.7

Os for Casablanca editing-system.

Cefarix / CFOS

Moutaz Haq

?

Freeware pre-emptive multitasking os with gui.

C Executive

JMI Software Consultants.

?

Memory-based real-time UNIX-like executive for the PDP-11 or VAX.

ChaOS

?

?

Based on Storm microkernel. Swedish project.

Choices

?

?

Object-oriented OS based on cache kernel

Chorus OS

Sun Microsystems (Chorus)

?

Real-time OS

ClassiX

Sun Microsystems (Chorus)

R3.1

Real-time OS

Clearpatch

Unisys

IX

CMOST

?

7.3

Standard os for the CM-5

CMX

?

?

Real-time OS

Coherent Unix

Mark Williams

4.0

Unix clone

Combidos

?

?

Compatible to CP/M

Concurrent Dos

IMS

7

OEM of Digital Research's Multiuser DOS

coniX

Nexus

?

romable embedded os for ARM cpu.

Cougar

Intel

?

Compute partition operating system

Counterpoise

?

Nothing yet

Starts off with a BSD kernel, to create an entire os from there.

Coyote

Dublin Trinity College

Object-oriented, reflective os

CPF

IBM

?

Object-oriented os with built-in relational database.

CP/M

Caldera (Digital Research)

3.1

Control Program for Microcomputers, earlier version also used for a predecessor of Ms-Dos

Crypto OS

Omega

Preview

MacOS compatible alternative for PPC.

CTOS

Unisys (C.T. inc.)

III

Cluster environment.

CTS

?

?

OS for PDP-11

D

Darwin

Apple

?

Core of MacOS X. based on FreeBSD and Mach 3.0 technologies.

DCP

VEB Robotron

3.20

1980's East-German ms-dos clone.

DG-UX

Data General

?

Unix clone

Digita

Flashpoint

?

Os used in digital photo cameras from Kodak, Minolta, HP and Pentax among others. Capable of running software and scripts.

Digital Unix/OSF1

Compaq (DEC)

4.0D

Unix clone from Digital, only available for Alpha CPU. See Tru64.

Dolmen

Class 4-Centek

?

Os only used on the Phenix 060 (atari-clone)

Dolphin

Samuel A. Falvo II

?

Freeware os for pc's and compatibles

DOS-C

Pat Villani

?

Dos clone

DOS-Plus

Philips

?

OS used for the Philips :Yes in 1985

DragonFly BSD

Matthew Dillon

2.2.0

Free Unix-like os. BSD based

DR DOS

Caldera

7.03

Modern dos clone based on the heritage of DR DOS from Digital Research and Novell DOS 7.

DROPS

TU Dresden

?

The Dresden Real Time Operation Systems Project

DS/UX

?

?

Unix clone

DYNIX/ptx

IBM (Sequent)

4.x

Unix clone

E

eComStation

Serenity Systems (IBM)

?

The next generation OS/2. Meant for webservers and e-business.

eCos

Red Hat / Cygnus Solutions

?

Free real-time os runtime compatible with the japanese norm µItron.

EduOS

Frank Cornelis

?

Small os meant for education.

Elate

Tao Group

?

Third generation Real-time os based on virtual processor. See Taos for it's predecessor.

ELKS

Various

?

The Embeddable Linux Kernel Subset

ELN

Compaq (DEC)

?

-

EmacsOS

?

?

Linux OS that boots straight into Emacs.

EOS

?

?

Os specially designed to run games under, now dead.

E.R.I.K.A.

Various

?

Kernel for the automotive industry.

EROS

Jonathan Shapiro

?

Extremely Reliable OS

EROS

Daniel Vila

?

Microkernel with Fenix subsystem

Expose

IBM

?

-

Extreme.linux

Redhat Software

?

Home-based supercomputing version of Linux.

Eye OS

Various

1.8

Cloud computing os

EYRX

Eyring Corporation

compact, high-performance, modular, scaleable, multitasking, real-time os for 32-bit x86 PC compatibles.

F

Fiasco

Jochen Liedtke

?

Microkernel compatible with L4 microkernel.Used as base for DROPS

Flex

?

?

Runs on a 6809 cpu

Flux

University of Utah

0.97

OS Toolkit to create your own os.

Fox

CMU

?

Project to write os in SML language

FreeBSD

Various

4.8

Freeware Unix clone used among ISPs and Web-hosting companies.

FreeDos

Jim Hall

Beta 5

Freeware Dos clone

Freedows

Freedows Team

?

Free os, will eventually be able to run programs from different os's simultaneous. Using cache kernel.

FreeMiNT

Various

?

Hybrid of Unix and TOS for the 68k Atari.

FreeVMS

?

?

Project to build OpenVMS look-a-like. Based on Mach3 kernel

Funatix

?

?

Small os for webservers,fits on 1 disk

G

GeekOS

?

?

Educational OS

Geex!

Fabricio Rocha

?

Free os with very small footprint

GEOS

New Deal Inc.

2

Formerly from Geoworks now part of New Deal Office

GECOS/GCOS

Groupe Bull

?

Clone of System/360 dos. Mainframe os from the1970s

GEM

Caldera (Digital Research)

?

Desktop environment, based on the original Xerox gui.

Go!

Greg Law

?

Build with software components that can be replaced and recycled.

gOS

goodOS

3.1

Cloud computing os

Grasshopper

Various

?

Orthogonally persistent distributed os for systems research.

G-speak

Oblong Industries

?

Spatial operating environment like the Minority Report movie.

GS/OS

Apple

?

Meant for the Apple IIgs. With many features from the early MacOS.

H

Haiku

Various

alpha

Open source os inspired by Beos

HanoiOS

?

?

‘The towers of Hanoi‘ with a simple kernel.

HOPE

Oregon Institute of Science and Technology

?

Primitives on top of a virtual machine.

HP/UX

HP

11

Unix clone from HP, 64-bit only available for HP-PA. Older version also on 680x0.

HT-11

?

?

Hacked version of RT-11.

Hurd

Debian / GNU

0.2

Multi-server os. (collection of servers that run on top of a microkernel)

I

IAS

?

?

Interactive Application System. Multi-purpose multiprogramming system for PDP-11

Inferno

Lucent Technologies (Bell Labs)

2.0

Network os add-on. Successor to Plan9.

InfinityOS

?

?

MacOS compatible alternative for PPC.

Integrity

Green Hills Software, Inc.

?

Secure, high reliability, royalty-free RTOS intended for use in mission critical embedded systems.

Interactive Unix

Sun Microsystems

?

Unix clone, SVR3.2-based

IOS

Cisco

12.x

Internetworking OS.

iPhone OS

Apple

3.0

Meant for the iPhone

Irix

SGI

6.2

Unix clone from Silicon Grafix, only available for MIPS. Also includes Real-time extensions called REACT

iTron

?

?

Real-time OS

ITS

MIT

Incompatible Timesharing System for PDP

J

JavaOS

Sun Microsystems

?

Real-time OS

Jbed

Esmertec, Inc.

Embedded Real-time Java Machine

JeniOS

Kevin McAleer

?

Development of a free Unix clone. Mach 3-based

JOS

Various

?

Free Java-based os

JxOS

Moore Co.

?

full pre-emptive multi-tasking OS environment.

K

KA9Q

?

?

Dos related OS

KangaroOS

Redhog

?

Free os with a virtual machine for each process.

KaosTOS

?

?

Atari compatible os.

Katix

Katix

?

Small real time operating system

khaOS

Various

0.99

Cryptographic distribution of Linux.

Knewcleus

?

?

microkernel-based OS that aims for POSIX compliance.

KOS

?

?

Small project to build free os.

KOSH

Various

?

Open software and hardware system initiative from the Amiga community.

KURT

Kansas University

?

Real-time Linux

L

Lattitude

Motorola (Metrowerks)

?

MacOS source compatible project. Probably stopped.

LegOS

Various

?

OS for Lego Mindstorms operation

Linspire OS

?

?

Windows compatible OS based on Linux. Formerly known as Lindows.

Linux

Various distributions

Kernel 2.3.x

Freeware Unix clone, kernel development maintained by Linus Torvalds. Available for most cpu's

Linux SMP

Various

?

Linux for shared memory multiprocessor machines.

LispOS

?

?

Freeware Lisp os

Lites

Helsinki University

?

FreeBSD based server on Mach.

LittleOS

Various

0.3.0

Experiment with OS techniques.

LOS

?

?

Os specially designed to run games under, now dead.

LynxOS

LynuxWorks

?

UNIX clone, POSIX-conforming, multiprocess, and multithreaded RTOS.

NAME:

DEVELOPER / OWNER:

LATEST RELEASE:

DESCRIPTION:

M

MacBSD

Various

?

Unix clone for PowerMac's

MachTen

Tenon Intersystems

1.4

Unix clone for PowerMac's and 68k Macs.

MacOS

Apple

10.0.3

Available on PPC and x86. Pre 8.1 versions also on 680x0.

MacOS X server

Apple

1.2

Server version of MacOS based on the heritage of OpenStep, with a BSD kernel.

MagiC

Milan Computer Gmbh

6.1

Compatible with Atari TOS

Magic Cap

General Magic

?

Sophisticated os for hpc's. Not in development anymore.

MANOS

Timpanogas

?

Metropolitan Area Network Operating System. Open source os, compatible with Novell Netware.

Masix

MASI Laboratory

?

Multi-server os. Mach-based.

MCP

Unisys (Burroughs)

5.0

Master Control Program for Unisys Mainframes.

MEDOS

?

?

Used on Lilith

MenuetOS

Various

0.90

pre-emptive multitasking, multithreading, ring-3 protection GUI with 16 million colors Hard real-time data fetch

Merlin

Jecel

?

SELF-based OS

MERTS

?

?

Virtual OS for PDP11

Minix

Andy Tanenbaum

3

Freeware Unix clone

MkLinux

Open Group Research Institute

?

Microkernel based Linux, available for x86, PPC and PA-RISC

Monterey-64

IBM

?

Next generation Unix clone for Itanium.

MorphOS

Various

2

Quark microkernel able to run Amiga applications without Amiga hardware.

Moscow

Julian R. Hall

?

Os implemented as libraries of reusable and replacable objects.

MOSIX

?

?

Software tool for supporting cluster computing

MPE

HP

6.0

Server os for HP x000.

MP/M

?

?

Multi-tasking version of CP/M

MPX

IBM

?

Real time os from the 1960s for the IBM 1800 computer.

Ms-Dos

Microsoft

7.1

Based on CP/M clone. Microsoft's Dynamic operating system. Last version part of Windows 98.

Msx-Dos

Microsoft

2.20

Only available for Msx

MTOS-UX

Industrial Programming, Inc.

?

Real-time OS for PPC

Multics

Various (Honeywell)

?

Multiplexed Information and Computing Service, a timesharing os for mainframes.

MultOS

Mondex (Mastercard)

?

Smart Card os

Multiuser DOS

Caldera (Digital Research)

7

Real-time OS

MUMPS-11

Compaq (DEC)

?

Multi-User Multi-Processing System for PDP-11

Mungi

?

?

Proposed one global distributed shared memory.

MunOS

C.i.s.d.

?

AmigaOS additive, development has stopped.

MVS

IBM

?

Mainframe OS

MXI OS

Radixs

?

Motion Experience Interface. Client OS for handhelds

MyDOS

Wordmark Systems

4.53

Freeware Dos clone

N

NachOS

Berkeley university

?

Unix clone

N.AES

Woller Systeme

1.2.0

Rewrite of Atari's MultiTOS. (aka Milan MultiOS).

NC OS

Liberate Technologies

?

OS for handheld pc's, mobile phones and AOL set-top-box. (fka NC Inc.)

NetBSD

Various

1.5

Freeware Unix clone runs on a variety of different cpu's.

NetOS

Neoware

?

Network Computer OS, Win95 lookalike interface.

NetWinder

Corel Computer

?

Linux-based os.

Neutrino

QNX

2.0

Real-time OS based on QNX for x86, MIPS and PPC.

NewOS

?

?

Small kernel

NEWS/OS

Sony

?

Unix clone for Sony NEWS 3400. SVR4-based.

Newton OS

Apple

?

Meant for Newton and eMate. Development has stopped.

Nitros-9

Various

?

Reconstruction of OS-9 for Hitachi 6309 compatible CPU.

NLS

?

?

-

Nokia Series 60

Nokia

?

OS for Nokia mobile phones series 60

Non-Stop Unix

Compaq (Tandem)

?

Unix clone

NOS/VE

Control Data

?

OS for Cyber Machines.

Novell Dos

Novell

7.x

Dos clone from Novell acquired by Caldera.

Novell NetWare

Novell

5.0 SP3A

Dedicated network os.

Novell UnixWare

Novell

?

Unix clone from Novell acquired by SCO.

NOW

University of Berkeley

?

Cluster os for inexpensive workstations

NTDIOS

Brice Rey

Freeware 32-bit multitasking os.

NUCLEUS

Accelerated Technology, Inc.

?

Real-time OS

NuOS

?

?

Amiga Related OS

NuTek OS

NuTek

?

Semi-MacOS-Compatible. NuTek isn't around anymore. Only on 68k.

O

Oberon

Swiss Federal Institute of Technology / ETH Zentrum

2.3.6

Workstation OS for the NS32k based Ceres workstation.. Ported to x86. Features an Object Oriented environment with dynamically linked modules.

Off

University of Madrid

?

Distributed microkernel

O/OS

Frank Kudermann

?

New GUI concept, and aims at architecturing the operating system around reusable, replacable components. However dead.

Opal

University of Washington

?

distributed single address space OS with page-level protection, Mach kernel on Alphas.

OpenBLT

Brian J. Swetland

?

Cleanroom implementation of a microkernel.

OpenBSD

Various

2.8

Freeware Unix clone used in academic and research communities. Available for most cpu's.

OpenStep

Apple / NeXt

4.2

Unix clone. Development has stopped in favour of"Rhapsody". Mach-based. A.k.a. NeXtStep

OpenWindows

Various

?

Freeware project to create Windows clone under GPL.

Oracle

Oracle

10g

Database system with its own kernel. Not able to run anything else.

OS/2 Warp

IBM

4.0

Meant as a follow-up of Dos in the 1980's. Look for eComStation.

OS 2000

OnChannel

?

Meant for set-top-boxes. Based on Linux.

OS/360

IBM

?

First 32-bit os for minicomp. in 1960's

OS/390

IBM

2.5

Mainframe OS for S/390. Looks similar to MVS

OS/400

IBM

V4R4

Server OS for AS/400.

OS-9

Microware Systems Corporation

2.2

Real-time OS. Available for 68k, x86, PPC, SH, ARM and StrongARM.

OSDEV

Josh MacDonald

?

Freeware os.

OSE

Enea OSE Systems

?

Real-time OS

OS/RT

Destek Group

?

Real-time OS

P

P2Dos

?

?

Free CP/M compatible clone (included with Z80 emulator Zsim).

PalmOS

PalmSource (3Com)

5

OS for handheld computers like the PalmPilot

Paragon OS

Paragon Inc.

?

Paragon Supercomputer OS

PC-Dos

IBM

2000

Dos clone from IBM

PDOS

Eyring Corporation

?

Multiuser, multitasking, realtime OS for the 680x0, TI-9900 and 9905.

PDP-1 OS

HP  (DEC)

?

OS from early 1960's for PDP-1

Pegasus

University of Cambridge

?

For applications that requiring a constant quality of service.

PetrOS

Trumpet Software

Alpha 0.9

Australian challenge to windows. Capable of running Win32 executables

Phantom OS

Balazs Miklos

?

Freeware os with microkernel

Pick

Pick Systems

?

-

Plan 9

Lucent Technologies / University of York

?

Distributed system, from the developers of Unix and C. See Inferno

pOS

ProDAD

R29

Partly AmigaOS compatible, but portable. Only on 68k and PPC. Current status unknown.

PowerMAX

Motorola Computer Group

?

Real-time os for (multi-cpu) PPC.

PowerOS

Titan Computer

?

First os designed for PPC. Familiar with Amiga OS.

PowerSE

Iwin Corporation

?

Amiga related os.

ProDOS

Apple

?

Runs on most Apple II with more than 64k ram. Port of SOS.

Project IMP

Various

?

Amiga related project.

Proolix

Prool

?

Freeware unix clone

pSOS

Integrated Systems

?

Real-Time Memory-Based Kernel for 68000.

PTS-DOS

Various

6.51

Freeware Dos clone

PTX

IBM (Sequent)

?

Unix clone

Pyramid

Pyramid

1.1

Unix clone for MIPS cpu. SVR4.2-based.

Q

QDOS

Tony Tebby

?

Os for the Sinclair QL

QP/M

?

?

Quick Cp/m clone, later used as Ms-Dos (aka Qdos)

QNP

QNP

?

Real-time OS

QNX RTOS

QNX Software

4.25

Small real-time OS

QOS

Stefan Robl

?

OS for the QBox

R

Raven

?

?

Freeware os.

ReactOS

Various

0.0.15

Free Windows NT clone.

Realtime Linux

Various

?

Extension to Linux that handles time-critical tasks.

Real32

IMS Ltd.

?

Dos clone

ReliantUnix/SINIX

SNI

5.44

Unix clone from Siemens, 64-bit only on MIPS

RISC-OS

RiscOS Ltd.

4

Used on Acorn RISC PC

ROM-DOS

DataLight

?

RSTS

Compaq (DEC)

?

Resource Sharing/Time Sharing. General purpose Time sharing system for PDP-11 from the 1970's

RSX11

Compaq (DEC)

11M

Resource Sharing eXecutive. Multiprogramming system for the PDP-11. A lot of versions exist.

RT11

Compaq (DEC)

?

Real Time. Foreground/Background or Single Job operating system for PDP-11 from the 1970's

RTEMS

Rtems

4.5.x

Freeware Real-time executive for multiprocessor systems and embedded military applications.

RTMX

?

?

commercial version of OpenBSD.

RTUX

Emerge Systems

?

Real time OS based on Unix for 68000 based systems.

RTOS UH

Uni-Hannover

7.8-A

Real time OS from Germany with preemption of system-calls. Available on 68k and PPC.

RTS-80

MicroSystems

?

Real-time system for Z80 , CP/M compatible.

RxDOS

Michael Podanoffsky

?

Dos clone for embedded systems.

S

Scalos

S. Sommerfeld

1.4 Beta

Amiga related.

SCO OpenServer

Caldera / SCO

5.0.5

Unix clone. SVR3.2-based

SCO UnixWare

Caldera / SCO

7.1.1

Unix clone. Freeware for consumers. x86 only. SVR5-based

SCOPE

Control Data Corporation

?

See NOS/Be

SCOUT

University of Arizona

?

Aimed at network appliances like webcams and ip routers.

Screens

Christian Nylén

?

PPC OS for Amiga.

Secure Linux

Various

?

Secure Linux. Name to be determined

ShagOS

Frank Barrus

?

Object-oriented system based on a message passing kernel.

S.Ha.R.K.

?

?

Freeware dynamic configurable kernel architecture.

ShawnOS

Brian Klock

?

Written as a college exercise.

Singularity

Microsoft Research

2.0

Experimental microkernel OS

SkyOS

Robert Szeleney

5.0 beta

Freeware os with gui and drivers.

Smalltox

Xerox PARC

?

The first GUI for a computer in 1976

SMSQ/E

Tony Tebby

?

Qdos compatible extended os for Small Microcomputer Systems.

SMX

Micro Digital Inc.

?

Field-proven kernel for RTOS.

Solaris/SunOS

Sun Microsystems

10

Unix clone from SUN. SVR4-based. 64-bit for SPARC and IA64.

Solaris-MC

Sun Microsystems

?

Creating a distributed OS out of Unix.

Sombrero

?

?

Providing an unique address to objects in a global address space.

SOS

Apple

?

Meant for the Apple III.

SPACE

University of Santa Barbara

?

Implements protection as multiple layers.

SPARC64/OS

Sun Microsystems

?

Os for Sun UltraSparc. 64-bit

SpartaDos

Stephen J. Carden

4.22

Dos clone

SpiderOS

?

?

Distributed OS with efficient load balancing.

SPIN

University of Washington

?

Allows applications to migrate code in kernel space.

Spring

Sun Microsystems

?

Unix clone

Sprite

University of Berkeley

?

Distributed os, project terminated.

SQOS

?

?

Conventional os written in assembler.

Starplex II

National Semiconductor

?

Realtime OS for the Z80A

Stella

Tony Tebby

?

Project to create os that performs componentisation and scheduling optimisation for single-processor computers (that perform fake multitasking).

STOP

BAE Systems

7

Secure Trusted OS for the multi-level secure computer system XTS-400

SUNMOS / PUMA

S.N.Labs and University of N.M.

?

light-weight operating system for distributed memory architectures

SuperDOS

?

?

Dos clone

SwarmOS

?

?

Freeware kernel based OS.

SyllableOS

?

?

?

Symbian

Symbian

9

Meant for Psion palmtops and many other devices. Symbian is a joint
venture between Psion, Ericcson, Nokia and Motorola.

Symphony OS

Various

2008.1

Linux based with Mezzo Desktop Environment

Synthesis

Henry Massalin

?

First os that dynamically generates code at runtime.

Synthetix

OGI

?

Fine-grained incremental partial evaluation in OS kernels.

NAME:

DEVELOPER / OWNER:

LATEST RELEASE:

DESCRIPTION:

T

Tao OS

Tao Group

?

Currently only OS that can distribute code on heterogeneous underlying networks.

TFLOPS OS

Intel

?

Supercomputer OS from Intel. Ported from Paragon OS

Theos 32

Theos Software

4.1

Multiuser, multitasking os with support for over 200 users simultaneous.

THix

?

?

Unix implementation meant for Learning.

ThorOS

?

?

-

Tigger

?

?

Framework for the construction of a family of distributed object-support platforms.

TINOS

Bart Sekura

?

Small, multipurpose OS

Top Dos

Eclipse Software

1.5+

Dos clone

TOPS-20

Compaq (DEC)

?

Virtual memory os for the decsystem 20 from the 1970's

Topsy

George Fankhauser

?

Microkernel, ported to the R3000 architectures.

Top View

IBM

?

GUI from IBM, used around the time when Windows was released.

TOS

Atari / Milan Computer

4.08

Atari went bankrupt years ago, others like Milan computers continued development. Only available for 680x0

Touchwiz

Samsung

?

For Samsung smartphones

TRAX

?

?

Transaction Processing system for PDP-11

Treck MicroC/OS-II

Treck Inc.

?

Next generation of uC/OS and is a very simple, low cost, preemptive RTOS that that has mailboxes, semaphores, and queues.

Tripos

MetaComco

?

Unix clone used for AmigaOS.

TRON

University of Tokyo

?

The Real-Time Operating System Nucleus from mid-1980s

Tru 64

Compaq

5.0

64-bit Unix clone based on Digital Unix.

Trusted

HP

?

Unix clone from HP with build-in internet security.

TSX

IBM

?

Time sharing real-time os from the 1960s for the IBM 1800 and PDP-11

TSX-32

?

?

32-bit os that emulates dos.

Tunes

?

?

Os project with a NoKernel idea among others.

Turbodos

?

?

CP/M clone

U

UCOS

Ucos

?

Real-time OS

Ultrix

Compaq (DEC)

4.4

Unix clone from Digital, BSD based, available for VAX, DECStations and MIPS. Replaced by Digital Unix.