OS An operatingsystem OS is software , consisting of Computer program programs and data , that runs ... operatingsystem market share.aspx?qprid 10 title OperatingSystem Market Share publisher Net Applications ref Types of Operating Systems Real time OperatingSystem It is a multitasking operatingsystem that aims at executing real time applications. Real time operating systems ... user operating systems, as opposed to a multi user operatingsystem, are usable by a single user at a time. Being able to have multiple accounts on a Windows operatingsystem does not make it a multi user system. Rather, only the network administrator is the real user. But for a Unix like operating ... user operatingsystem. Multi tasking and Single tasking Operating Systems When a single program ... the operatingsystem allows the execution of multiple tasks at one time, it is classified as a multi tasking operatingsystem. Multi tasking can be of two types namely, pre emptive or co operative. In pre emptive multitasking, the operatingsystem slices the CPU time and dedicates one slot to each of the programs ... OperatingSystem An operatingsystem that manages a group of independent computers and makes them appear to be a single computer is known as a distributed operatingsystem. The development of networked ... work in cooperation, they make a distributed system. Embedded System The operating systems designed ... complex forms until the early 1960s. ref Hansen, pp. 4 7 ref Some operatingsystem features were ... in the 1980s, vendors added operatingsystem features that had previously become widely used on mainframe ... for personal computer operating systems. An operatingsystem consists of many parts. One of the most ... sequences in user space libraries or in the operatingsystem itself. Which features are considered part of the operatingsystem is defined differently in various operating systems. For example, Microsoft Windows considers its user interface to be part of the operatingsystem, while many versions ... more details
The term secure operatingsystem is a misnomer. Relevant articles include Security focused operatingsystem Security evaluated operatingsystem Trusted operatingsystem disambig Category Operatingsystem security ... more details
Refimprove date December 2009 An embedded operatingsystem is an operatingsystem for embedded system embedded computer systems . These operating systems are designed to be compact, efficient, and reliable, forsaking many functions that non embedded computer operating systems provide, and which may not be used by the specialized applications they run. They are frequently also real time operatingsystem s, and the term RTOS is often used as a synonym for embedded operatingsystem . An important difference between most embedded operating systems and desktop operating systems is that the application, including the operatingsystem, is usually statically linked together into a single executable image. Unlike a desktop operatingsystem, the embedded operatingsystem does not load and execute applications ref Programming Embedded Systems , Second Edition, Michael Barr and Anthony Massa ref . This means that the system is only able to run a single application. See also Portal Computer Science List of operating systems Embedded List of Embedded operating systems Principle of least privilege computer security References Reflist DEFAULTSORT Embedded OperatingSystem Category Embedded operating systems Embedded operatingsystemOperatingsystem stub nl Ingebed besturingssysteem ja no Innebygd operativsystem zh ... more details
A robot operatingsystem is an operatingsystem made especially for the functioning of a robot. Robot operating systems Open source ROS Robot OperatingSystem http dros.org Dave s Robotic OperatingSystem Proprietary Advanced Robotics Control OperatingSystem ARCOS http www.evolution.com products ersp Evolution robotics ESRP See also Robotics suite robotics stub Category Robotics Category Robots Category Open machine ... more details
Unreferenced stub auto yes date December 2009 For the operatingsystem used in the Acorn BBC computer range Acorn MOS MOS means Mobile OperatingSystem Lang ru , . It was a Soviet Union Soviet clone computer science clone of Unix in the 1980s. This operatingsystem was commonly found on SM EVM minicomputer s it was also ported to ES EVM and Elbrus computer Elbrus . There have been several modifications of MOS named MNOS , DEMOS , INMOS operatingsystem INMOS etc. See also List of Soviet computer systems DEFAULTSORT Mos OperatingSystem Category Unix Operatingsystem stub ... more details
Unreferenced stub auto yes date December 2009 In operatingsystem s, an overlay is when a process computing process replaces itself with the code of another program. On Unix like systems, this is accomplished with the tt Exec operatingsystem exec tt system call. In Unix , the only way to run new programs is to fork operatingsystem fork the running process, and then overlay the new program on top of the child process child . This is known as the fork exec technique. See also Chain loading DEFAULTSORT Overlay OperatingSystem Category Process computing Operatingsystem stub ko ... more details
OSP, an Environment for OperatingSystem Projects , is a teaching operatingsystem designed to provide an environment for an introductory course in operating systems. By selectively omitting specific modules of the operatingsystem and having the students re implement the missing functionality, an instructor can generate projects that require students to understand fundamental operatingsystem concepts. The distribution includes the OSP project generator, which can be used to package a project and produce stubs files that are empty except for required components, and that can be compiled for the files that the students must implement. OSP includes a simulator that the student code runs on. References OSP An Environment for OperatingSystem Projects by Michael Kifer and Scott A. Smolka , Addison Wesley , 1991 , 86 pages 2nd printing in 1992 . External links http portal.acm.org citation.cfm?doid 142854.142879 1992 paper ACM portal http tcos.org Bulletin fall96 osp.ps 1996 paper br Category Discontinued operating systems operatingsystem stub fa ... more details
Unreferenced stub auto yes date December 2009 Orphan date October 2006 Interruptible operating systems are the operatingsystem s with ability to handle multiple interrupt s Concurrency computer science concurrently , or in other words, which allow interrupts to be interrupted. Concurrent interrupt handling essentially mean concurrent execution of kernel computer science kernel code and hence induces the additional complexity of concurrency control in accessing kernel datastructures. To put it in more layman s terms, it means that you can stop any program that is already running. This is a feature on nearly all modern operating systems. DEFAULTSORT Interruptible OperatingSystem Category Operatingsystem technology Category Interrupts Operatingsystem stub ... more details
Unreferenced stub auto yes date December 2009 Orphan date February 2009 The Flask operatingsystem architecture is a joint venture between the National Security Agency , the University of Utah , and the Secure Computing Corporation project designed to provide a framework for a more secure operatingsystem . Development and implementation started with the Mach kernel Mach microkernel , and has since shifted its focus to the Linux operatingsystem. It is now better known as Security Enhanced Linux or SE Linux . DEFAULTSORT Flask OperatingSystem Category Linux Operatingsystem stub ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Brazil , was the code name for what became the Fourth Edition of the Plan 9 from Bell Labs operating system it was designed for high performance networks. One of its main purposes was to minimize overhead for multimedia operations and take advantage of high speed networking and computer hardware. Some of the experimental changes in Brazil also became part of the Inferno operating system Inferno operating system . DEFAULTSORT Brazil Operating System Category Plan 9 from Bell Labs Category Inferno Operating system stub ... more details
Unreferenced date December 2009 Orphan date February 2009 The Kent Applicative OperatingSystem is a functional operatingsystem concept to use dynamic process creation and inter process communication. The system is based on earlier work by Will R. Stoye . The system allow dynamic creation of functional process es. Processes are stream processors, functions that transform an ingoing to an outgoing stream. Process scheduling is based on evaluation on demand. Inter process communication is, by message passing , based on Stoye s sorting office concept. Category Discontinued operating systems Operatingsystem stub ... more details
Single system image SSI operatingsystem project created by the Faculty of Science and Technology at Deakin University , Melbourne Australia . ref name Goscinski2002 citation author Goscinski, A. Hobbs, M. Silcock, J. year 2002 title GENESIS an efficient, transparent and easy to use cluster operatingsystem journal Parallel Computing volume 28 issue 4 pages 557 606 doi 10.1016 S0167 8191 02 00077 7 url http www.cs.aue.auc.dk akbar 2004 os coures 04 genesis.pdf ref External links http www.deakin.edu.au scitech sit dsapp research index.php?x 8 Genesis Home Page warning link moves References references Category Operating systems operatingsystem stub ... more details
Orphan date February 2009 Notability date November 2007 TUNES is project to create an OperatingSystem which is strongly influenced by object oriented programming , high level language s. Currently, it is in its planning stage as it has been since 1994 . The name, TUNES, is a recursive acronym which stands for TUNES is a Useful, Not Expedient, System. External links http www.tunes.org TUNES Website Category Operating systems Comp sci stub Operatingsystem stub ... more details
Infobox OS name SHARE OperatingSystem logo screenshot caption developer SHARE computing SHARE user group source model kernel type supported platforms IBM 704 , IBM 709 ui family released 1959 latest release version latest release date latest test version latest test date marketing target programmed in prog language language English language English updatemodel package manager working state Historic license website The SHARE OperatingSystem , also known as SOS , was created in 1959 as an improvement on the GM NAA I O General Motors GM NAA I O operatingsystem, the first operatingsystem, by the SHARE computing SHARE user group . The main target was to improve the sharing of programs over GM NAA I O. SHARE OperatingSystem provided new methods to manage Data buffer buffers and input output devices, and, like GM NAA I O, allowed execution of programs written in assembly language . Initially it worked on IBM 704 computer, but later was ported to IBM 709 . Later IBM supported it under the name IBSYS , porting it to its new transistor based computers, the IBM 7090 7090 and IBM 7094 7094 . See also GM NAA I O , the first operatingsystem and the inspiration for the SHARE OperatingSystem. Timeline of operating systems External links http web.archive.org web 20070928190200 http www.piercefuller.com library share.html?id share Upload of the SHARE OperatingSystem software and documentation partial archive operatingsystem stub Category Free software operating systems while not an IBM produced OS, it is definitely part of IBM s OS history Category IBM operating systems es SHARE OperatingSystem ... more details
orphan date October 2009 Kid OperatingSystem KOS is a project that aims to develop an operatingsystem for educational purposes. It is licensed under the GNU General Public License GPL . It runs on x86 architecture. The project was started by a group of young French students in June 1998. They wanted to develop their programming skills by developing their own small operatingsystem. Inexperience played a major role in advancing the development, which was relatively slow to begin with. History of the KOS Project June 1998 Creation of the project by Dimitri Ara and Thomas Petazzoni End 1998 A mini operatingsystem starts April 1999 Arrival of Julien Munier , a major project. Call for contribution. In late 1999 and early 2000 Two physical meetings between developers, leading to a mini system with very limited functionality no memory management, no multitasking August 2000 Complete overhaul of the system From constant work on this second version of the system A more complete history of the project http kos.enix.org histo.php?lang en is available on their website. Goals of the KOS Project The project s goal is not to obtain as soon as possible a functional operatingsystem and supposed to compete with other free and proprietary systems. The purpose is purely educational and pedagogical. For developers, this project is an opportunity to learn the low level programming, to understand the inner workings of an operatingsystem and architecture of a computer, learn to work in groups and tools for collaborative work. For others, the project brings KOS documents, a bibliography and source code available under GPL. Simple OperatingSystem A derivation from KOS is SOS, or Simple OperatingSystem. The objective of this project is to show, step by step to achieve a small operatingsystem ... Business Cards http www.enix.org thomas Category Educational operating systems fr Kid OperatingSystem ... more details
In computing , mechanisms and techniques for managing services often differ by operatingsystem . Operatingsystem service management can refer to the following In several Unix and Unix like operating systems, init.d scripts, used by the init process, are used to control services. Sun Microsystem s Solaris 10 operating environment uses the Service Management Facility . Microsoft Windows uses INSTSRV and SRVANY programs, see also Windows service and Service Control Manager , Cygwin , a collection of free software tools that allows Microsoft Windows to function similarly to a Unix system, uses a tool called cygrunsrv. Apple s Mac OS X uses launchd or SystemStarter , depending on the version of the system software. Some Linux distros such as Canonical Ltd. s Ubuntu operatingsystem Ubuntu and Google s Chrome OS use Upstart . runit Category Computing terminology ... more details
The term networking operatingsystem has two meanings routers an embedded operatingsystem OS in a router or firewall computing hardware firewall . Examples JUNOS , used in routers and switch es from Juniper Networks , Cisco IOS formerly Cisco Internetwork OperatingSystem . historical an operatingsystem designed to allow shared file access shared file and printer access among computers in a network, typically a local area network LAN , a private network or to network. Examples include Novell Netware , Windows NT . Category Operatingsystem technology Category Network related software software type stub network software stub ar de Netzwerkbetriebssystem es Sistema operativo de red fa ko id Sistem operasi jaringan it Network OperatingSystem nl Netwerkbesturingssysteem ja sv Network operatingsystem ... more details
multiple issues unreferenced November 2009 original research November 2009 An object oriented operatingsystem is an operatingsystem which internally uses Object oriented programming object oriented methodologies . An object oriented operatingsystem is in contrast to an object oriented user interface or programming Software framework framework , which can be placed above a non object oriented operatingsystem like DOS , Microsoft Windows or Unix . It can be argued, however, that there are already object oriented concepts involved in the design of a more typical operatingsystem such as Unix . While ... the computer company NeXT . One of NeXT s first tasks was to design an object oriented operatingsystem, NEXTSTEP . They did this by adding an object oriented framework on top of Mach kernel Mach and BSD using the Objective C language as a basis. Choices Choices operatingsystem Choices is an object oriented operatingsystem that was developed at the University of Illinois at Urbana Champaign ... ARM . Athene Athene operatingsystem Athene is an object based operatingsystem first released in 2000 .... Syllable Syllable operatingsystem Syllable makes heavy use of C and for that reason is often ... and basic hardware support, it would be possible to write the rest of the operatingsystem in Java ... device driver s, can be written in Java. Examples of attempts at such an operatingsystem include JX operatingsystem JX , JNode and JavaOS . Microsoft Singularity Singularity operatingsystem Singularity is an experimental OperatingSystem based on Microsoft s .NET Framework . It is comparable ... Genera Genera operatingsystem Genera from Symbolics is an operatingsystem for Lisp Machine ... itself DEFAULTSORT Object Oriented OperatingSystem Category Operatingsystem technology Category ... science method s in the form of system call s, whose behavior varies based on the type of object ... of object oriented programs. BeOS One attempt at creating a truly object oriented operating ... more details
Refimprove date March 2008 Trusted OperatingSystem TOS generally refers to an operatingsystem that provides sufficient support for multilevel security and evidence of correctness to meet a particular set of government requirements. The most common set of criteria for trusted operatingsystem design is the Common Criteria combined with the Security Functional Requirements SFRs for Labeled Security Protection Profile LSPP and Mandatory Access Control MAC . The Common Criteria is the result of a multi year effort by the governments of the U.S., Canada, United Kingdom, France, Germany, and the Netherlands to develop a harmonized security criteria for IT products. Examples of certified trusted operating systems are HP UX HP UX 10.26 PitBull for AIX 5L Trusted Solaris Trusted UNICOS 8.0 Rated B1 XTS 400 Examples of operating systems that might be certifiable are FreeBSD SELinux see http www.nsa.gov research selinux faqs.shtml I12 FAQ Linux Companies that have created trusted operating systems include Addamax BSD, SVR3, SVR4, HP UX Argus Systems Group Solaris, AIX AT&T System V Bull AIX Data General DG UX Digital Equipment Corporation Ultrix Gemini Computers GEMSOS Harris Corporation SVR3, SVR4 Hewlett Packard HP UX Honeywell Multics IBM OS 390, AIX SCO Group SCO SCO Unix Secure Computing Corporation LOCK, Mach, BSD SecureWare Apple A UX, HP UX, SCO Sequent Dynix ptx Silicon Graphics IRIX Sun Microsystems SunOS, Solaris Trusted Information Systems Xenix, Mach BAE Systems XTS Unix See also Comparison of operating systems Security evaluated operatingsystem Security focused operatingsystem References reflist External links http www.nsa.gov research selinux faqs.shtml NSA FAQ on SELinux http www.argus systems.com Argus Systems Category Operatingsystem security fr Trusted operatingsystem ... more details
An OperatingSystem Abstraction Layer OSAL provides an application programming interface API to an Abstraction computer science abstract Real Time OperatingSystem real time operatingsystem making it easier and quicker to develop code for multiple software or hardware platforms. OSAL deals with presenting an abstraction of the common system functionality that is offered by any Operatingsystem by the means of providing meaningful and easy to use Wrapper functions that in turn encapsulate the system functions offered by the OS to which the code needs porting. A well designed OSAL provides implementations of an API for several Real Time Operating Systems such as vxWorks , eCos , RTLinux , RTEMS . Implementations may also be provided for non Real Time Operating Systems, allowing the abstracted software to be developed and tested in a developer friendly desktop environment. In addition to the OS APIs, the OS Abstraction Layer project may also provide a Hardware Abstraction Layer , designed to provide a portable interface to hardware devices such as memory, I O ports, and non volatile memory . To facilitate the use of these APIs, OSAL generally includes a directory structure and set of makefiles that facilitate building a project for a particular OS and hardware platform. Implementing projects using OSAL allows for development of portable embedded system software that is independent of a particular Real Time OperatingSystem. It also allows for embedded system software to be developed and tested on desktop workstations, providing a shorter development and debug time. Implementations ClarinoxSoftFrame ClarinoxSoftFrame middleware provides OS abstraction targeting wireless embedded device and system development. It comprises of wireless protocol stacks, development tools and memory management techniques in addition to the support of desktop and a range of real time operating systems. External links http opensource.gsfc.nasa.gov projects osal index.php Category Operatingsystem ... more details
Operatingsystem development is one of the more involved and technical options for a computer hobbyist. A hobby operatingsystem is classified as one with little or no support from other developers. ref cite web url http www.osnews.com story 22638 My OS Is Less Hobby than Yours work Osnews title My OS is less hobby than yours date December 21, 2009 accessdate December 21, 2009 ref software developer Development begins with an existing operatingsystem. The development platform may be a bare hardware machine, which is the nature of an operatingsystem , but it can be developed and tested on a virtual machine. Because the hobbyist must claim more ownership for adapting a complex system to the ever changing needs of the technical terrain, zeal and enthusiasm is common amongst the many different groups attracted to operatingsystem development. Development Elements of traditional PC based operating systems include Kernel computer science Kernel Bootstrapping computing Bootstrapping Memory management Process management computing Process management and Scheduling computing scheduling Device driver management Traditionally, kernel developers have commonly used the C programming language C programming language and Assembly language Assembly . C remains popular for OS developers, as it provides low level pointer manipulation and requires no run time support as opposed to some elements of C , such as the new and delete operators . References reflist See also List of operating systems Computer architecture External references http www.osdev.org OSDev.org A hobby OSDev community http aodfaq.wikispaces.com aodfaq Extensive and editable OS development FAQ http www.osdever.net Bona Fide ... OperatingSystem Resource Center Information and resources on various OSDev topics both software ... OS Tut Index.php Germsoft.com A small collection of tutorials on os development. DEFAULTSORT OperatingSystem Development Category Operatingsystem technology ... more details
Unreferenced date August 2009 For the family of disk operating systems for the IBM PC compatible platform DOS Disk OperatingSystem specifically and disk operatingsystem generically , most often abbreviated as DOS , refers to an operatingsystem software used in most computers that provides the abstraction ... operatingsystem was an extension of the operatingsystem. This component was only loaded if needed ... at the disk sector sector level. In some cases, the disk operatingsystem component or even the operatingsystem was known as DOS . Sometimes, a disk operatingsystem can refer to the entire operating ... System. As prices for both disk hardware and operatingsystem software decreased, there were ... 8 bit family Atari and Apple Computer Apple home computer systems all featured a disk operatingsystem ... isk O perating S ystem 360 and VSE operatingsystem DOS VSE D isk O perating S ystem V irtual S torage ... time . In large machines there were other disk operating systems, such as IBM s VM operatingsystem ... ITS Compatible Time Sharing System CTSS , Control Data s assorted network operatingsystem NOS variants ... used Technical Systems Consultants TSC s FLEX operatingsystem FLEX disk operatingsystem, Radio Shack ... of the legendary Altair 8800 , Cromemco , North Star , etc., used the CP M 80 disk operatingsystem. See list of operating systems . Usually, a disk operatingsystem was loaded from a disk. Only a very ... that were extensions to the OS The DOS operatingsystem was the primary operatingsystem for the Apple ... that were the main OS Some disk operating systems were the operatingsystem for the entire computer system. The DOS 360 initial simple operatingsystem for the IBM System 360 family of mainframe computer s it later became DOS VSE, and was eventually just called VSE operatingsystem VSE . The DOS operatingsystem for Digital Equipment Corporation DEC PDP 11 minicomputer s. This OS and the computers ... Disk operating systems fr Disk operatingsystem it Disk operatingsystem pt Sistema operacional ... more details
Infobox OS name SPIN prog language Modula 3 developer University of Washington website http www spin.cs.washington.edu SPIN screenshot caption logo family source model kernel type monolithic kernel ui license The SPIN Operating System is a research project implemented in the computer programming language Modula 3 , and is an Open Source project. It is designed with three goals in mind flexibility , safety and performance . SPIN was developed at the University of Washington . The kernel can be extended by dynamically loaded modules which implement interfaces. These interfaces are defined by the Modula 3 INTERFACE modules. All kernel extensions are written in Modula 3. One set of kernel extensions provides an application programming interface API that emulates the Digital Unix system call interface. This allows Unix applications to run on the SPIN operating system. External links The http www spin.cs.washington.edu SPIN web site operating system stub Category Free software operating systems ... more details
XOS was an operatingsystem for the Scientific Data Systems XDS SDS Sigma 7 Sigma line of computers optimized for direct replacement of IBM DOS 360 and successors DOS 360 installations and to provide Real time operatingsystem real time and timesharing support ref name factsheet http www.bitsavers.org pdf sds sigma xos XOS Fact Sheet Aug72.pdf XOS Fact Sheet, 1972 ref . XOS was developed, beginning in 1969, for Xerox by the French firm CII now Groupe Bull Bull . ref http books.google.com books?id b5for5RdBCoC&lpg PA29&ots zpzZ lu3wo&dq xds 20xos&pg PA29 v onepage&q xds 20xos&f false Strassmann, Paul A. 2008 , The Computers Nobody Wanted My Years with Xerox . Information Economics Press. ref XOS was more successful in Europe than in the US, but was unable to compete with IBM. By 1972 there were 35 XOS installations in Europe vs. 2 in the US ref name factsheet . Notes Empty section date September 2010 References Reflist External links http www.bitsavers.org pdf sds sigma xos XOS Documentation at Bitsavers http www.computerhistory.org collections accession 102660710 XOS the Xerox operatingsystem, general information digest Category Operating systems Operating systems Category Discontinued operating systems Category Proprietary operating systems ... more details
Infobox OS name Academic OperatingSystem logo screenshot caption developer IBM source model kernel type supported platforms ROMP ui family Berkeley Software Distribution 4.3BSD Unix released latest release version AOS43 latest release date December 22, 1988 latest test version latest test date marketing target Academic institutions programmed in C programming language C prog language C programming language C language updatemodel package manager working state Historic license website Academic OperatingSystem AOS was IBM s version of Berkeley Software Distribution 4.3BSD Unix for the IBM RT . It was offered to academic institutions as an alternative to IBM AIX AIX , the usual RT operatingsystem . AOS had a few extra features, compared to standard 4.3BSD, notably Network File System protocol NFS , and an almost ANSI C compliant C programming language C compiler . A later version of AOS existed that was derived from 4.3BSD Reno, but it never was widely distributed. External links http www.uni giessen.de faq archiv ibm rt faq.aos msg00000.html AOS FAQ IBM operating systems Unix like Category BSD Category Discontinued operating systems Category Unix stubs Category IBM operating systems unix stub ... more details
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