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Universe (Unix)
In some versions of the Unix operating system, the term universe was used to denote some variant of the working environment. During the late 1980s, most commercial Unix variants were derived from either UNIX System V, System V or Berkeley Software Distribution, BSD. Most versions provided both BSD and System V universes and allowed the user to switch between them. Each universe, typically implemented by separate directory trees or separate filesystems, usually included different versions of commands, Library (computer science), libraries, Manual page (Unix), man pages, and header files. While such a facility offered the ability to develop applications portable across both System V and BSD variants, the requirements in disk space and maintenance (separate configuration files, twice the work in patching systems) gave them a problematic reputation. Systems that offered this facility included Harris/Concurrent's CX/UX, Convex Computers, Convex's Convex/OS, Apollo Computer, Apollo's Domai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unix
Unix (; trademarked as UNIX) is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, whose development started in 1969 at the Bell Labs research center by Ken Thompson, Dennis Ritchie, and others. Initially intended for use inside the Bell System, AT&T licensed Unix to outside parties in the late 1970s, leading to a variety of both academic and commercial Unix variants from vendors including University of California, Berkeley (Berkeley Software Distribution, BSD), Microsoft (Xenix), Sun Microsystems (SunOS/Solaris (operating system), Solaris), Hewlett-Packard, HP/Hewlett Packard Enterprise, HPE (HP-UX), and IBM (IBM AIX, AIX). In the early 1990s, AT&T sold its rights in Unix to Novell, which then sold the UNIX trademark to The Open Group, an industry consortium founded in 1996. The Open Group allows the use of the mark for certified operating systems that comply with the Single UNIX Specification (SUS). Unix systems are chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyramid Technology
Pyramid Technology Corporation was a computer company that produced a number of RISC-based minicomputers at the upper end of the performance range. It was based in the San Francisco Bay Area of California They also became the second company to ship a multiprocessor UNIX system (branded DC/OSx), in 1985, which formed the basis of their product line into the early 1990s. Pyramid's OSx was a dual-universe UNIX which supported programs and system calls from both 4.xBSD and AT&T's UNIX System V. History Pyramid Technology was formed in 1981 by a number of ex-Hewlett-Packard employees, who were interested in building first-rate minicomputers based on RISC designs. In March 1995 Pyramid was bought by Siemens AG and merged into their Siemens Computer Systems US unit. In 1998 this unit was split, with the services side of the operation becoming Wincor Nixdorf. In 1999 Siemens and Fujitsu merged their computer operations to form Fujitsu Siemens Computers, and finally Amdahl was added to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OPENSTEP
OpenStep is a defunct object-oriented application programming interface (API) specification for a legacy object-oriented operating system, with the basic goal of offering a NeXTSTEP-like environment on non-NeXTSTEP operating systems. OpenStep was principally developed by NeXT with Sun Microsystems, to allow advanced application development on Sun's operating systems, specifically Solaris (operating system), Solaris. NeXT produced a version of OpenStep for its own Mach kernel, Mach-based Unix, stylized as OPENSTEP, as well as a version for Windows NT. The software libraries that shipped with OPENSTEP are a superset of the original OpenStep specification, including many features from the original NeXTSTEP. History In the early era of the Sun Microsystems history, Sun machines had been programmed at a relatively low-level making calls directly to the underlying Unix operating system and producing a graphical user interface (GUI) using the X11 system. This led to complex programming ev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NeXTSTEP
NeXTSTEP is a discontinued object-oriented, multitasking operating system based on the Mach kernel and the UNIX-derived BSD. It was developed by NeXT Computer in the late 1980s and early 1990s and was initially used for its range of proprietary workstation computers such as the NeXTcube. It was later ported to several other computer architectures. Although relatively unsuccessful at the time, it attracted interest from computer scientists and researchers. It hosted the original development of the Electronic AppWrapper, the first commercial electronic software distribution catalog to collectively manage encryption and provide digital rights for application software and digital media, a forerunner of the modern "app store" concept. It is the platform on which Tim Berners-Lee created the first web browser, and on which id Software developed the video games ''Doom'' and '' Quake''. In 1996, NeXT was acquired by Apple Computer to succeed the classic Mac OS, by merging NeXTSTEP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SINIX
Sinix may refer to: * SINIX, computer operating system * Şınıx, Azerbaijan {{dab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens Nixdorf Informationssysteme
Siemens Nixdorf Informationssysteme, AG (SNI) was formed in 1990 by the merger of Nixdorf Computer and the Data Information Services (DIS) division of Siemens. It functioned as a separate company within Siemens. It was the largest information technology company in Europe until 1999, when it was split into two: Fujitsu Siemens Computers and Wincor Nixdorf. Wincor Nixdorf took over all banking and retail related business. Products SNI sold: *BS2000 and SINIX operating systems *BS2000 mainframe computers *a number of databases *SNI RISC-based RM-x00 servers *a variety of other hardware and software products (from Personal Computers to SAP R/3). * ComfoDesk – a GUI shell for enterprise users See also * |
RISC/os
RISC/os is a discontinued UNIX operating system developed by MIPS Computer Systems, Inc. from 1985 to 1992, for their computer workstations and servers, including such models as the MIPS M/120 server and MIPS Magnum workstation. It was also known as UMIPS or MIPS OS. RISC/os was based largely on UNIX System V with additions from 4.3BSD UNIX, ported to the MIPS architecture. It was a " dual-universe" operating system, meaning that it had separate, switchable runtime environments providing compatibility with either System V Release 3 or 4.3BSD. MIPS OS was one of the first 32-bit operating systems for RISC-based workstation-class computers. It was also one of the first 64-bit Unix releases for RISC based microprocessors, with the first 64-bit versions appearing in 1990. MIPS OS supported full 32-bit and 64-bit applications simultaneously using the underlying hardware architecture supporting the MIPS-IV instruction set. Later releases added support for System V Release 4 compatibil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MIPS Technologies
MIPS Technologies, Inc., formerly MIPS Computer Systems, Inc., was an American fabless semiconductor design company that is most widely known for developing the MIPS architecture and a series of RISC CPU chips based on it. MIPS provides processor architectures and cores for digital home, networking, embedded, Internet of things and mobile applications. MIPS was founded in 1984 to commercialize the work being carried out at Stanford University on the MIPS architecture, a pioneering RISC design. The company generated intense interest in the late 1980s, seeing design wins with Digital Equipment Corporation (DEC) and Silicon Graphics (SGI), among others. By the early 1990s the market was crowded with new RISC designs and further design wins were limited. The company was purchased by SGI in 1992, by that time its only major customer, and won several new designs in the game console space. In 1998, SGI announced they would be transitioning off MIPS and spun off the company. After se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DC/OSx
DC/OSx (DataCenter/OSx) is a discontinued Unix operating system for MIPS based systems developed by Pyramid Technology. It ran on its Nile series of SMP machines and was a port of AT&T System V Release 4 (SVR4). In 1995, Pyramid Technology was acquired by Siemens Nixdorf Informationssysteme (SNI), and DC/OSx was superseded by the SINIX operating system. History DC/OSx was the first symmetric multiprocessing (SMP) implementation on Unix System V Release 4. DC/OSx was later superseded by SINIX, a version of the Unix operating system from SNI. Features of DC/OSx were incorporated into SINIX; later versions were branded as Reliant Unix. See also * BS2000 * Timeline of operating systems This article presents a timeline of events in the history of computer operating systems from 1951 to the current day. For a narrative explaining the overall developments, see the History of operating systems. 1950s * 1951 ** LEO I 'Lyons Electro ... References External linksList of Unix Varia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Domain/OS
Domain/OS is the discontinued operating system used by the Apollo/Domain line of workstations manufactured by Apollo Computer. It was originally launched in 1981 as AEGIS, and was rebranded to Domain/OS in 1988 when Unix environments were added to the operating system. It is one of the early distributed operating systems. Hewlett-Packard supported the operating system for a short time after they purchased Apollo, but they later ended the product line in favor of HP-UX. HP ended final support for Domain/OS on January 1, 2001. AEGIS AEGIS is distinctive mainly for being designed for the networked computer, as distinct from its competitors, which are essentially standalone systems with added network features. The prime examples of this are the file system, which is fully integrated across machines, as opposed to Unix which draws a distinction between file systems on the host system and on others, and the user administration system, which is fundamentally network-based. So basic is thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
