|
BSDi
Berkeley Software Design, Inc. (BSDI or, later, BSDi), was a software company founded in 1991 by members of the Computer Systems Research Group (CSRG), known for developing and selling BSD/OS (originally known as BSD/386), a commercial and partially proprietary variant of the BSD Unix operating system for PCs. Creation and BSD/386 BSDI was founded by Rick Adams and members of the Computer Systems Research Group (CSRG) at the University of California, Berkeley, including Keith Bostic, Kirk McKusick, Mike Karels, Bill Jolitz and Donn Seeley. Jolitz, Seeley and Trent Hein were working for Rick Adams's UUNET at the time and became BSDI's first employees when the company began operations in 1991. In December 1991, USENIX Secretary and Former Head of Software at Convex Computer, Rob Kolstad from University of Illinois, was hired and would take over company operations just two years later. Jolitz, who worked on 386BSD, claimed that he was never officially hired or signed an emp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BSD/OS
BSD/OS is a proprietary Unix operating system first released in 1993 as BSD/386. It was originally developed and sold by Berkeley Software Design, Inc. (BSDi) and designed to be a Unix for 386-based PCs. It was built off the Net/2 distribution of BSD, on which the developers had previously contributed to. Eventually the operating system was also ported to support PowerPC and SPARC architectures, and consequently was retitled to BSD/OS as of version 2.0 (1995). In 2001, BSDi sold the rights of the OS to Wind River Systems who developed and released version 5.0 in 2003 before discontinuing the product. History BSDi was formed in 1991 by members of the Computer Systems Research Group (CSRG) at UC Berkeley to develop and sell a proprietary version of BSD Unix for PC compatible systems with Intel 386 (or later) processors. This made use of work previously done by Bill Jolitz to port BSD to the PC platform. BSDi had distributed over 300 copies of the beta version of BSD/386 by Augu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IXsystems
iXsystems, Inc. is a privately owned American computer technology company based in San Jose, California that develops, sells and supports computing and storage products and services. Its principal products are customized open source FreeBSD distributions, including the discontinued desktop operating system TrueOS (formerly PC-BSD), the FreeBSD based file servers and network attached storage systems TrueNAS Core (previously FreeNAS) and TrueNAS Enterprise, and the Linux based TrueNAS SCALE. It also markets hardware platforms for these products, and develops enterprise-scale storage architectures and converged infrastructures. As part of its activities, the company has strong ties to the FreeBSD community, has repeatedly donated hardware and support to fledgling projects within the BSD community, and sponsors and develops development within FreeBSD, as well as being a sponsor and attendee of open-source community events. History iXsystems was founded in 1991 as Berkeley Softw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
386BSD
386BSD (also known as "Jolix") is a Unix-like operating system that was developed by couple Lynne and William "Bill" Jolitz. Released as free and open source in 1992, it was the first fully operational Unix built to run on IBM PC-compatible systems based on the Intel 80386 ("i386") microprocessor, and the first Unix-like system on affordable home-class hardware to be freely distributed. Its innovations included role-based security, ring buffers, self-ordered configuration and modular kernel design. Development began in 1989 while the Jolitzes were at the University of California, Berkeley's Computer Systems Research Group (CSRG), intended to be a port of BSD to 386-based personal computers. They then contributed the project to the university with some of the work ending up in BSD's Net/2, distributed in 1991. However when the CSRG scrapped the project and ruled that his work was "university proprietary", Jolitz rewrote the code from scratch, based on the incomplete free c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berkeley Software Distribution
The Berkeley Software Distribution (BSD), also known as Berkeley Unix or BSD Unix, is a discontinued Unix operating system developed and distributed by the Computer Systems Research Group (CSRG) at the University of California, Berkeley, beginning in 1978. It began as an improved derivative of AT&T's original Unix that was developed at Bell Labs, based on the source code but over time diverging into its own code. BSD would become a pioneer in the advancement of Unix and computing. BSD's development was begun initially by Bill Joy, who added virtual memory capability to Unix running on a VAX-11 computer. In the 1980s, BSD was widely adopted by workstation vendors in the form of proprietary Unix distributions such as DEC Ultrix and Sun Microsystems SunOS due to its permissive licensing and familiarity to many technology company founders and engineers. It also became the most popular Unix at universities, where it was used for the study of operating systems. BSD was sponsored ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mike Karels
Michael J. Karels (August 2, 1956 – June 2, 2024) was an American software engineer and one of the key figures in history of BSD UNIX. Biography Karels graduated from the University of Notre Dame with a degree in microbiology and from the University of California, Berkeley with a graduate degree. In 1993, the USENIX Association gave a Lifetime Achievement Award (''Flame'') to the Computer Systems Research Group at University of California, Berkeley, honoring 180 individuals, including Karels, who contributed to the CSRG's 4.4BSD-Lite release. His face appears on the 7 of Spades on the USENIX 1994 Playing Card Deck. In February 1992 Karels moved to BSDI ( Berkeley Software Design) and designed BSD/OS, which, for years, was the only commercially available BSD style Unix on Intel platform. BSDi's software assets were bought by Wind River in April 2001, and Karels joined Wind River as the Principal Technologist for the BSD/OS platform. Following his time at Wind River, Karels ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keith Bostic (software Engineer)
Keith Bostic (born July 26, 1959) is an American software engineer and one of the key people in the history of Berkeley Software Distribution (BSD) Unix and open-source software. Biography In 1986, Bostic joined the Computer Systems Research Group (CSRG) at the University of California, Berkeley. He was one of the principal architects of the Berkeley 2BSD, 4.4BSD and 4.4BSD-Lite releases. Among many other tasks, he led the effort at CSRG to create a free software version of BSD Unix, which, in turn, enabled the creation of FreeBSD, NetBSD, and OpenBSD. Bostic was a founder of Berkeley Software Design Inc. (BSDi), which produced BSD/OS, a proprietary version of BSD. In 1993, the USENIX Association gave a Lifetime Achievement Award (''Flame'') to the Computer Systems Research Group, honoring 180 individuals, including Bostic, who contributed to the group's 4.4BSD-Lite release. Bostic and his wife Margo Seltzer founded Sleepycat Software in 1996 to develop and commercialize Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Systems Research Group
The Computer Systems Research Group (CSRG) was a research group at the University of California, Berkeley, that was dedicated to enhancing AT&T Unix operating system and funded by the Defense Advanced Research Projects Agency. History Professor Bob Fabry of Berkeley acquired a UNIX source license from AT&T in 1974. His group started to modify UNIX, and distributed their version as the Berkeley Software Distribution (BSD). In April 1980, Fabry signed a contract with DARPA to develop UNIX even further and accommodate the specific requirements of the ARPAnet. With this funding, Fabry created the Computer Systems Research Group. By the early 1980s, CSRG was the best-known non-commercial Unix developer, and a majority of Unix sites used at least some Berkeley software. AT&T included some CSRG work in Unix System V. During the 1970s and 1980s, AT&T/USL raised the commercial licensing fee for UNIX from $20,000 to $100,000–$200,000. This became a big problem for small research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operating System
An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for efficient use of the system and may also include accounting software for cost allocation of Scheduling (computing), processor time, mass storage, peripherals, and other resources. For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computerfrom cellular phones and video game consoles to web servers and supercomputers. , Android (operating system), Android is the most popular operating system with a 46% market share, followed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convex Computer
Convex Computer Corporation was a company that developed, manufactured and marketed vector minisupercomputers and supercomputers for small-to-medium-sized businesses. Their later Exemplar series of parallel computing machines were based on the Hewlett-Packard (HP) PA-RISC microprocessors, and in 1995, HP bought the company. Exemplar machines were offered for sale by HP for some time, and Exemplar technology was used in HP's V-Class machines. History Convex was formed in 1982 by Bob Paluck and Steve Wallach in Richardson, Texas. It was originally named Parsec and early prototype and production boards bear that name. They planned on producing a machine very similar in architecture to the Cray Research vector processor machines, with a somewhat lower performance, but with a much better price–performance ratio. In order to lower costs, the Convex designs were not as technologically aggressive as Cray's, and were based on more mainstream chip technology, attempting to make up for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Illinois At Urbana–Champaign
The University of Illinois Urbana-Champaign (UIUC, U of I, Illinois, or University of Illinois) is a public land-grant research university in the Champaign–Urbana metropolitan area, Illinois, United States. Established in 1867, it is the founding campus and flagship institution of the University of Illinois System. With over 59,000 students, the University of Illinois is one of the largest public universities by enrollment in the United States. The university contains 16 schools and colleges and offers more than 150 undergraduate and over 100 graduate programs of study. The university holds 651 buildings on and its annual operating budget in 2016 was over $2 billion. The University of Illinois Urbana-Champaign also operates a research park home to innovation centers for over 90 start-up companies and multinational corporations. The University of Illinois Urbana-Champaign is a member of the Association of American Universities and is classified among "R1: Doctoral Univ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UNIX System V
Unix System V (pronounced: "System Five") is one of the first commercial versions of the Unix operating system. It was originally developed by AT&T and first released in 1983. Four major versions of System V were released, numbered 1, 2, 3, and 4. System V Release 4 (SVR4) was commercially the most successful version, being the result of an effort, marketed as ''Unix System Unification'', which solicited the collaboration of the major Unix vendors. It was the source of several common commercial Unix features. System V is sometimes abbreviated to SysV. , the AT&T-derived Unix market is divided between four System V variants: IBM's AIX, Hewlett Packard Enterprise's HP-UX and Oracle's Solaris, plus the free-software illumos forked from OpenSolaris. Overview Introduction System V was the successor to 1982's UNIX System III. While AT&T developed and sold hardware that ran System V, most customers ran a version from a reseller, based on AT&T's reference implementation. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Source Code
In computing, source code, or simply code or source, is a plain text computer program written in a programming language. A programmer writes the human readable source code to control the behavior of a computer. Since a computer, at base, only understands machine code, source code must be Translator (computing), translated before a computer can Execution (computing), execute it. The translation process can be implemented three ways. Source code can be converted into machine code by a compiler or an assembler (computing), assembler. The resulting executable is machine code ready for the computer. Alternatively, source code can be executed without conversion via an interpreter (computing), interpreter. An interpreter loads the source code into memory. It simultaneously translates and executes each statement (computer science), statement. A method that combines compilation and interpretation is to first produce bytecode. Bytecode is an intermediate representation of source code tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
