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Britton Lee
Britton Lee Inc. was a pioneering relational database company. Renamed ShareBase, it was acquired by Teradata in June, 1990. History Britton Lee was founded in 1979 by David L. Britton, Geoffrey M. Lee, and a group of hardware engineers along with Robert Epstein, Michael Ubell and Paula Hawthorn from the research team that created Ingres. The company sold database machines, specialized computers designed for database software. it had an installed base of about 300, primarily for midrange systems such as DEC VAX. Epstein later left Britton Lee to help found Sybase. Britton and Lee left the company in 1987. On May 15, 1989, the company formally changed its name to ShareBase Corporation. After layoffs and financial losses in 1989, ShareBase was acquired by Teradata in June, 1990. Teradata was, like Britton-Lee, an early database machine vendor. Products As of Fall, 1989: * ShareBase II (tm): An RDBMS designed for a client/server environment. * ShareBase(tm) I: Predecessor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Database Server
A database server is a server which uses a database application that provides database services to other computer programs or to computers, as defined by the client–server model. Database management systems (DBMSs) frequently provide database-server functionality, and some database management systems (such as MySQL) rely exclusively on the client–server model for database access (while others, like SQLite, are meant for use as an embedded database). Users access a database server either through a " front end" running on the user's computerwhich displays requested dataor through the " back end", which runs on the server and handles tasks such as data analysis and storage. In a master–slave model, database master servers are central and primary locations of data while database slave servers are synchronized backups of the master acting as proxies. Most database applications respond to a query language. Each database understands its query language and converts each submi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Workstation
A workstation is a special computer designed for technical or computational science, scientific applications. Intended primarily to be used by a single user, they are commonly connected to a local area network and run multi-user operating systems. The term ''workstation'' has been used loosely to refer to everything from a mainframe computer terminal to a Personal computer, PC connected to a Computer network, network, but the most common form refers to the class of hardware offered by several current and defunct companies such as Sun Microsystems, Silicon Graphics, Apollo Computer, Digital Equipment Corporation, DEC, HP Inc., HP, NeXT, and IBM which powered the 3D computer graphics revolution of the late 1990s. Workstations formerly offered higher performance than mainstream personal computers, especially in Central processing unit, CPU, Graphics processing unit, graphics, memory, and multitasking. Workstations are optimized for the Visualization (graphics), visualization and ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
VM (operating System)
VM (often: VM/CMS) is a family of IBM virtual machine operating systems used on IBM mainframes System/370, System/390, zSeries, System z and compatible systems, including the Hercules (emulator), Hercules emulator for personal computers. Design The heart of the VM architecture is the ''Control Program'' or hypervisor abbreviated CP, VM-CP and sometimes, ambiguously, VM. It runs on the physical hardware, and creates the virtual machine environment. VM-CP provides full virtualization of the physical machine – including all I/O and other privileged operations. It performs the system's resource-sharing, including device management, dispatching, virtual storage management, and other traditional operating system tasks. Each VM user is provided with a separate virtual machine having its own address space, virtual devices, etc., and which is capable of running any software that could be run on a stand-alone machine. A given VM mainframe typically runs hundreds or thousands of virt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HP 9000
HP 9000 is a line of workstation and server (computing), server computer systems produced by the Hewlett-Packard (HP) Company. The native operating system for almost all HP 9000 systems is HP-UX, which is based on UNIX System V. The HP 9000 brand was introduced in 1984 to encompass several extant technical workstation models launched formerly in the early 1980s. Most of these were based on the Motorola 68000 series, but there were also entries based on HP's own HP FOCUS, FOCUS designs. From the mid-1980s, the line was transitioned to HP's new PA-RISC architecture. Finally, in the 2000s, systems using the IA-64 were added. The HP 9000 server line was discontinued in 2003, being superseded by Itanium-based HPE Integrity Servers, Integrity Servers running HP-UX. The HP 9000 workstation line was discontinued in 2009, being superseded by HP Z. History The first HP 9000 models comprised the HP 9000 Series 200 and Series 500 ranges. These were rebadged existing models, the Series 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HP 3000
The HP 3000 series is a family of 16-bit computing, 16-bit and 32-bit computing, 32-bit minicomputers from Hewlett-Packard. It was designed to be the first minicomputer with full support for time-sharing in the hardware and the operating system, features that had mostly been limited to mainframes, or retrofitted to existing systems like Digital Equipment Corporation, Digital's PDP-11, on which Unix was implemented. First introduced in 1972, the last models reached end-of-life in 2010, making it among the longest-lived machines of its generation. The original HP 3000 hardware was withdrawn from the market in 1973 to address performance problems and OS stability. After reintroduction in 1974, it went on to become a reliable and powerful business system, one that regularly won HP business from companies that had been using IBM's mainframes. Hewlett-Packard's initial naming referred to the computer as the System/3000, and then called it the HP 3000. The HP 3000 originally used a 16-b ... [...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. Pyramid licensed its multiprocessor bus technology to Fujitsu/ ICL in 1993, also entering into a marketing partnership in certain markets that would see ICL sell Pyramid server products and offer integration services with ICL's existing mainframe products. Such sales arrangements were to continue into 1994, by which time ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3B Series Computers
The 3B series computers are a line of minicomputers made between the late 1970s and 1993 by AT&T Computer Systems' Western Electric subsidiary, for use with the company's UNIX operating system. The line primarily consists of the models 3B20, 3B5, 3B15, 3B2, and 3B4000. The series is notable for controlling a series of electronic switching systems for telecommunications, for general computing purposes, and for serving as the historical software porting base for commercial UNIX. History The first 3B20D was installed in Fresno, California at Pacific Bell in 1981. Within two years, several hundred were in place throughout the Bell System. Some of the units came with "small, slow hard disks". The general purpose family of 3B computer systems includes the 3B2, 3B5, 3B15, 3B20S, and 3B4000. They run the AT&T UNIX operating system and were named after the successful 3B20D High Availability processor. In 1984, after regulatory constraints were lifted, AT&T introduced the 3B20D, 3B20S, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AT&T
AT&T Inc., an abbreviation for its predecessor's former name, the American Telephone and Telegraph Company, is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's List of telecommunications companies, third largest telecommunications company by revenue and the List of mobile network operators in the United States, third largest wireless carrier in the United States behind T-Mobile US, T-Mobile and Verizon. As of 2023, AT&T was ranked 32nd on the Fortune 500, ''Fortune'' 500 rankings of the largest United States corporations, with revenues of $122.4 billion. The modern company to bear the AT&T name began its history as the American District Telegraph Company, formed in St. Louis in 1878. After expanding services to Arkansas, Kansas, Oklahoma and Texas through a series of mergers, it became the Southwestern Bell Telephone Company in 1920. Southwestern Bell was a subsidiary of AT&T Corporation, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun Microsystems
Sun Microsystems, Inc., often known as Sun for short, was an American technology company that existed from 1982 to 2010 which developed and sold computers, computer components, software, and information technology services. Sun contributed significantly to the evolution of several key computing technologies, among them Unix, Reduced instruction set computer, RISC processors, thin client computing, and virtualization, virtualized computing. At its height, the Sun headquarters were in Santa Clara, California (part of Silicon Valley), on the former west campus of the Agnews Developmental Center. Sun products included computer servers and workstations built on its own Reduced instruction set computer, RISC-based SPARC processor architecture, as well as on x86-based AMD Opteron and Intel Xeon processors. Sun also developed its own computer storage, storage systems and a suite of software products, including the Unix-based SunOS and later Solaris operating system, Solaris operating s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apple Macintosh
Mac is a brand of personal computers designed and marketed by Apple Inc., Apple since 1984. The name is short for Macintosh (its official name until 1999), a reference to the McIntosh (apple), McIntosh apple. The current product lineup includes the MacBook Air and MacBook Pro laptops, and the iMac, Mac Mini, Mac Studio, and Mac Pro desktops. Macs are currently sold with Apple's UNIX-based macOS operating system, which is Proprietary software, not licensed to other manufacturers and exclusively Pre-installed software, bundled with Mac computers. This operating system replaced Apple's original Macintosh operating system, which has variously been named System, Mac OS, and Classic Mac OS. Jef Raskin conceived the Macintosh project in 1979, which was usurped and redefined by Apple co-founder Steve Jobs in 1981. The original Macintosh 128K, Macintosh was launched in January 1984, after Apple's 1984 (advertisement), "1984" advertisement during Super Bowl XVIII. A series of increment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM PC DOS
IBM PC DOS (an acronym for IBM Personal Computer Disk Operating System),Formally known as "The IBM Personal Computer DOS" from versions 1.0 through 3.30, as reported in those versions' respective COMMAND.COM outputs also known as PC DOS or IBM DOS, is a discontinued disk operating system for the IBM Personal Computer, its successors, and IBM PC compatibles. It was sold by IBM from the early 1980s into the 2000s. Developed by Microsoft, it was also sold by that company to the open market as MS-DOS. Both operating systems were identical or almost identical until 1993, when IBM began selling PC DOS 6.1 with its own new features. The collective shorthand for PC DOS and MS-DOS was DOS, which is also the generic term for disk operating system, and is shared with dozens of disk operating systems called DOS. History The IBM task force assembled to develop the IBM PC decided that critical components of the machine, including the operating system, would come from outside vendors. This r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
