Developer of Operating SystemsThe software developers of the operating systems are listed on this page. The screenshots are a snapshot with the design and main topic of the respective companies in the year 2003. Besides the screenshot of the website, the company description and the developed operating system software is named. There is a link to the article of the operating system and a detailed description from the companies can be chosen over the left page navigation.
Apple was founded by Steve Jobs with 21 years and Stephen G. Wozniak with 26 years in Palo Alto/California in 1976. On January 24th, 1984 the success of the Macintosh computer and Mac OS operating system started with the market announcement by Steve Jobs.
Operating System Mac OS / macOS
Sophisticated Operating System
The American Telephone and Telegraph Corporation can look back at a long history and numerous innovations. The first UNIX version was published under the name UNIX time sharing system V1 in November 1971.
Operating System UNIX
The company Be Incorporated was founded of Jean-Louis Gassée with a couple of developers after his work in the Apple development department in 1990. By the assumption of Palm Inc. for 11 million dollar BeOS is not any longer commercially developed in August 2001. The BeOS Community and some BeOS developers keeps the support for the future.
Operating System BeOS
Operating System BeIA
Cray Research, Inc.
Cray was founded in 1972 by Seymour Cray at the age of 47 years. Since 1951 he was mainly and with great engagement engaged in the development of high performance calculating machines.In 1989 Cray leaves the research institute Cray Research and founds the Cray Computer Corp. in Colorado.
Operating System UNICOS
Jordan Hubbard started the FreeBSD project in November 1993 by forking source code from the 386BSD operating system. FreeBSD bases on 4.4 BSD Lite release for x86 computers of March 1994 and has his strengths in the network area.
Operating System FreeBSD
Based on FreeBSD: DragonFly BSD, ekkoBSD, PC-BSD, PicoBSD
Bill Hewlett and Dave Packard founded HP in 1939. At the beginning oscillographs were produced and commercialized. HP-UX is based on the UNIX System V Release 4 and was designed by HP for the RISC architecture of Motorola since 1982. It is a pure server operating system with high availability and flexible memory and security management.
Operating System HP-UX
Computing Tabulating Recording Co.(CTR) was founded in New York on June 15th, 1911. CTR was then renamed in International Business Machines in 1924. In 1975 IBM produced for the first time a personal computer (PC), the model was called 5100 and introduced the term PC to the world.
Operating System AIX
Operating System MVS
Operating System OS/2
Linus Torvalds developed the operating system Linux. His operating system was derivated from concepts of Minix but completely written from scratch. On 17th September 1991 the operating system Freax version 0.01 was finished. It contained the GNU Shell bash and the GNU C-compiler GCC from Richard Stallman, which counts to the standard programs for the in meantime named operating system Linux.
Operating System GNU/Linux
Michael Robertson had announced the beginning of an ambitious project in August 2001. Programs of both Windows and Linux can be installed and executed easily. In the legal controversy about the word similarity of the name Lindows to Microsoft Windows, the opponents agreed about the renaming of Lindows in Linspire till the End of October 2004.
Operating System Linspire (LindowsOS)
MandrakeSoft was founded in France in 1998. Mandrakesoft published the take-over of the Linux enterprise Conectiva leading in Brazil and Latin America on 24th February 2005. From the fusion of Mandrakesoft and Conectiva, the company Mandriva was formed.
Operating System Mandriva Linux (Mandrake Linux)
Paul Allen and Bill Gates went to the same school and founded the company Traf-O-Data for the manufacture of small computer systems for the logging of car traffic in 1971. Both founded later the company Micro-Soft in 1975 to develop software for the IBM PC and to port the programming language Basic. Later the company was renamed to Microsoft.
XENIX (Co-Production with SCO)
Operating System MS-DOS
Operating System OS/2, with IBM
Windows Operating Systems
Minix was programmed by the computer scientist Andrew Tanenbaum as a teaching operating system for x86 computer. It is related to the AT&T UNIX, however it does not contain any licence requiring source code of UNIX so that it is free of charge to be used and sold.
Operating System MINIX
NetBSD is a UNIX derivative and is descended directly from the Berkeley Networking Release 2 (BSD Net/2) and was published for the first time in March 1993. The strengths are besides the UNIX relationship in the platform the general application of a stable operating system in research and development areas.
Operating System NetBSD
Novell has his roots in the a computer manufacturer Novell Data Systems in 1979. In January 1983, this company was renamed to Novell Inc. with the new target to develop and commercialize software and hardware for use in networks. Inventor of Novell NetWare for enterprise server and workstation clients.
Operating System NetWare
Operating System SuSE Linux, OpenSuSE
OpenBSD is descended from NetBSD 1.0 (1994) and split in October 1995 through Theo de Raadt in an independent distribution. OpenBSD claims to be the safest open source operating system and licensed under the BSD licence. OpenBSD has a secure base through the "Secure by Default" concept and many code audits.
Operating System OpenBSD
Based on OpenBSD: MirOS BSD, emBSD, Anonym.OS, OliveBSD
Jeff Hawkins founded the company Palm Computing in 1992 and appointed Donna Dubinsky as CEO. Palm developed first application software for numerous Handheld models. Since september 2005 PalmSource belongs to the Japanese software provider Access. On 25 January 2007 Palm OS was renamed in Garnet OS and old devices with Palm OS and new devices of Access carry the logo "Access Powered".
Operating System PalmOS, GarnetOS
QNX Software Systems
QNX is a real time operating system designed for critical tasks. Developed by QNX Software Systems it has a structure similar to UNIX and is compatible to POSIX. His strengths are the development of software, control of industrial roboters and embedded devices.
Operating System QNX
In 1996 a small group of persons had decided to create a completely new operating system that can execute Windows applications. At first this project was called FreeWin95 and had some start-up problems. In 1998 the nearly given up project was reanimated by the new project manager Jason Filby and renamed in ReactOS. The aim definition of ReactOS is to become a Windows NT/XP compatible operating system.
Operating System ReactOS
The company Red Hat with company headquarters in the USA North Carolina was founded 1994 by Bob Young and Marc Ewing. From the beginning the open source operating system has played a high role for the enterprise concept.
Operating System Red Hat Linux
Based on Red Hat Linux: Fedora Linux, CentOS
Castle Technology Ltd.
The Reduced Instruction Set Computer operating system was first used in Acorn Archimedes computers in 1987. Pace Micro Technology plc is owner of RISC OS latest since 1999 and has handed over the further development to the company RISCOS Ltd. Castle Technology Ltd. takes over Pace Micro Technology plc. in 2003 with the whole RISC OS technology.
Operating System RISC OS
SCO (Santa Cruz Operation)
SCO was founded in 1979 of the both brothers Doug and Larry Michels who developed the UNIX derivative SCO UNIX for Intel computers. SCO showed the next company plan at the "Forum 2000" after the sale of the UNIX business to the Linux company Caldera. Caldera split up the complete UnixWare and Open Server operating system business into the SCO Group.
Operating System UnixWare
Silicon Graphics, Inc.
Silicon Graphics was founded by 8 persons in 1982. SGI is manufacturer of workstations, servers and also sells supercomputers and clusters for effortful graphical computing. SGI has his headquarters in Mountain View, California and is leaded by Rick Beluzzo as CEO.
Operating System IRIX
Sun Microsystems, Inc.
Sun Microsystems was founded by Andreas of Bechtolsheim, Vinod Khosla, Bill Joy and Scott McNealy in the Californian Silicon Valley in 1982. Sun Microsystems GmbH was set up in 1984 in Munich, sales offices are established in Ratingen, Berlin, Hamburg and Stuttgart.
Operating System Java OS
Operating System Solaris
The society for software and system development is a subsidiary enterprise of SuSE Linux AG. SuSE was founded on 2nd September 1992 by Burchard Steinbild, Hubert Mantel, Thomas Fehr and Roland Dyroff and offers a unique Linux distribution in the European area. Novell announced the take-over of the company SuSE Linux on 4th November 2003.
Operating System SuSE Linux
Symbian is the operating system of Symbian, formerly software house of Psion. Symbian has licensed Symbian OS to companies which are big players in the market of High Technology mobile telephones. Symbian, EPOC, the Symbian logo and Symbian Developer Network logo are registered trademarks of the Symbian Ltd.
Operating System EPOC, Symbian OS
yellowTAB was founded in Germany, Stuttgart by 10 persons. This company acquired the license from Palm to use and develop the BeOS source code. The software publisher magnussoft takes over the YellowTab Zeta operating system starting from May 2006 and provides exclusively the world-wide distribution and development.
Operating System Zeta, BeOS derivative