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Sequent Computer Systems
Sequent Computer Systems, Inc. was a computer company that designed and manufactured multiprocessing computer systems. They were among the pioneers in high-performance symmetric multiprocessing (SMP) Open system (computing), open systems, innovating in both hardware (e.g., cache (computing), cache management and interrupt handling) and software (e.g., read-copy-update). Through a partnership with Oracle Corporation, Sequent became a dominant high-end Unix, UNIX platform in the late 1980s and early 1990s. Later they introduced a next-generation high-end platform for UNIX and Windows NT based on a non-uniform memory access architecture, NUMA-Q. As hardware prices fell in the late 1990s, and Intel shifted their server focus to the Itanium processor family, Sequent joined the Project Monterey effort in October 1998, which aimed to move a standard Unix to several new platforms. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiprocessing
Multiprocessing (MP) is the use of two or more central processing units (CPUs) within a single computer system. The term also refers to the ability of a system to support more than one processor or the ability to allocate tasks between them. There are many variations on this basic theme, and the definition of multiprocessing can vary with context, mostly as a function of how CPUs are defined ( multiple cores on one die, multiple dies in one package, multiple packages in one system unit, etc.). A multiprocessor is a computer system having two or more processing units (multiple processors) each sharing main memory and peripherals, in order to simultaneously process programs. A 2009 textbook defined multiprocessor system similarly, but noted that the processors may share "some or all of the system’s memory and I/O facilities"; it also gave tightly coupled system as a synonymous term. At the operating system level, ''multiprocessing'' is sometimes used to refer to the executi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portland Business Journal
American City Business Journals, Inc. (ACBJ) is an American newspaper publisher based in Charlotte, North Carolina. ACBJ publishes ''The Business Journals'', which contains local business news for 44 markets in the United States with each market's edition named for that market, and also publishes '' Hemmings Motor News'' and ''Inside Lacrosse''. The company is owned by Advance Publications and receives revenue from display advertising and classified advertising in its weekly newspaper and online advertising on its website and from a subscription business model. The bizjournals.com website, using the overarching online title ''The Business Journal'', contains local business news from various cities in the United States, along with an archive that contains more than 5 million business news articles published since 1996. it receives over 3.6 million readers each week. History American City Business Journals, Inc. was founded in 1982 by Mike K. Russell with the launch of the ''Ka ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DYNIX
DYNIX (''DYNamic UnIX'') was a Unix-like operating system developed by Sequent Computer Systems, based on 4.2BSD and modified to run on Intel-based symmetric multiprocessor hardware. The third major (Dynix 3.0) version was released May, 1987; by 1992 DYNIX was succeeded by DYNIX/ptx, which was based on UNIX System V. IBM obtained rights to DYNIX/ptx in 1999, when it acquired Sequent for $810 million. IBM's subsequent Project Monterey was an attempt, circa 1999, "to unify AIX with Sequent's Dynix/ptx operating system and UnixWare." By 2001, however, "the explosion in popularity of Linux Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ... ... prompted IBM to quietly ditch" this. References Berkeley Software Distribution Discontinued operating systems X86 operating sy ... [...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] |
Shared Memory Architecture
A shared-memory architecture (SM) is a distributed computing architecture in which the nodes share the same memory as well as the same storage.{{Cite web , title=Memory: Shared vs Distributed - UFRC , url=https://help.rc.ufl.edu/doc/Memory:_Shared_vs_Distributed , access-date=2024-03-13 , website=help.rc.ufl.edu It contrasts with shared-nothing architecture, in which each node has distinct memory and storage, and with shared-disk architecture, in which the nodes share the same storage but not the same memory. This is distinct from the use of shared memory between different programs or threads on a single node, with or without multiprocessing. See also * Distributed database A distributed database is a database in which data is stored across different physical locations. It may be stored in multiple computers located in the same physical location (e.g. a data centre); or maybe dispersed over a computer network, netwo ... * Shared memory References Distributed computin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NS32000
The NS32000, sometimes known as the 32k, is a series of microprocessors produced by National Semiconductor. Design work began around 1980 and it was announced at the International Solid-State Circuits Conference in April 1981. The first member of the family came to market in 1982, briefly known as the 16032 before being renamed as the 32016. It was the first general-purpose microprocessor on the market that used 32-bit data internally: the Motorola 68000 had 32-bit registers and instructions to perform 32-bit arithmetic, but used a 16-bit ALU for arithmetic operations on data, and thus took twice as long as the 32016 to perform those arithmetic operations. However, the 32016 contained many bugs and often could not be run at its rated speed. These problems, and the presence of the otherwise similar 68000 which had been available since 1980, led to little use in the market despite considerable early interest. Several improved versions followed, including 1985's 32032 which was ess ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Semiconductor
National Semiconductor Corporation was an United States of America, American Semiconductor manufacturing, semiconductor manufacturer, which specialized in analogue electronics, analog devices and subsystems, formerly headquartered in Santa Clara, California, Santa Clara, California. The company produced power management integrated circuits, display drivers, Audio amplifier, audio and operational amplifiers, communication interface products and data conversion solutions. National's key markets included wireless handsets, displays and a variety of broad electronics markets, including medical, automotive, industrial and test and measurement applications. On September 23, 2011, the company formally became part of Texas Instruments as the "Silicon Valley" division. History Founding National Semiconductor was founded in Danbury, Connecticut, by Dr. Bernard J. Rothlein on May 27, 1959, when he and seven colleagues, Edward N. Clarke, Joseph J. Gruber, Milton Schneider, Robert L. Hopkins, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intel IAPX 432
The iAPX 432 (''Intel Advanced Performance Architecture'') is a discontinued computer architecture introduced in 1981. It was Intel's first 32-bit processor design. The main processor of the architecture, the ''general data processor'', is implemented as a set of two separate integrated circuits, due to technical limitations at the time. Although some early 8086, 80186 and 80286-based systems and manuals also used the iAPX prefix for marketing reasons, the iAPX 432 and the 8086 processor lines are completely separate designs with completely different instruction sets. The project started in 1975 as the 8800 (after the 8008 and the 8080) and was intended to be Intel's major design for the 1980s. Unlike the 8086, which was designed the following year as a successor to the 8080, the iAPX 432 was a radical departure from Intel's previous designs meant for a different market niche, and completely unrelated to the 8080 or x86 product lines. The iAPX 432 project is considered a co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SCO Group, Inc
SCO or sco may refer to: Businesses and organizations * Santa Cruz Operation, a company founded in 1979 that existed under that name until 2001 * SCO Group, a software company formerly called Caldera International and Caldera Systems ** SCO OpenServer (formerly SCO Unix), an operating system made by the above companies * Shanghai Cooperation Organisation, a Eurasian inter-governmental political, economic, and security organization * Society of Canadian Ornithologists * Southern College of Optometry in Memphis, Tennessee * Special Communications Organization, a Pakistani telecommunication company * The ICAO airline code for Scoot Orchestras * Scottish Chamber Orchestra * Singapore Chinese Orchestra * Swedish Chamber Orchestra Science and technology * Scorpius, abbreviation for the constellation * Self-checkout machines, automated alternatives to traditional cashier-staffed checkout at retailers * Single cell oil, a type of oil produced by a microbe * Synchronous Connecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linux Kernel
The Linux kernel is a Free and open-source software, free and open source Unix-like kernel (operating system), kernel that is used in many computer systems worldwide. The kernel was created by Linus Torvalds in 1991 and was soon adopted as the kernel for the GNU operating system (OS) which was created to be a free software, free replacement for Unix. Since the late 1990s, it has been included in many Linux distributions, operating system distributions, many of which are called Linux. One such Linux kernel operating system is Android (operating system), Android which is used in many mobile and embedded devices. Most of the kernel code is written in C (programming language), C as supported by the GNU compiler collection (GCC) which has extensions beyond standard C. The code also contains assembly language, assembly code for architecture-specific logic such as optimizing memory use and task execution. The kernel has a Modular programming, modular design such that modules can be inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OSDL
Open Source Development Labs (OSDL) was a non-profit organization supported by a consortium to promote Linux for enterprise computing. Founded in 2000, OSDL positioned itself as an independent, non-profit lab for developers who are adding enterprise capabilities to Linux. The headquarters was first incorporated in San Francisco but later relocated to Beaverton in Oregon with second facility in Yokohama, Japan. On January 22, 2007, OSDL and the Free Standards Group merged to form the Linux Foundation, narrowing their respective focuses to that of promoting Linux. Activities OSDL sponsored projects, including industry initiatives to enhance Linux for use in corporate data centres, in telecommunications networks, and on desktop computers. It also: * provided hardware resources to the free software community and the open source community * tested and reported on open source software * employed a number of Linux developers. Its employees included Linus Torvalds, the first OSDL fell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
