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Topic: VM (Operating system)

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Conversational Monitor System

Virtual machine

X86 virtualization

Operating system

Processor architecture

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List of IBM products

Application

ZSeries

	Driving apparatus - Patent 6945045
		The figure shows that, whereas the operating temperature tb of the conventional SMA is 65° C., the operating temperature ta of the SMA of this embodiment is 70° C. or higher, and its temperature hysteresis has a width of 20° C. or smaller.
		The camera shake correction system adopts, as a camera shake detection system, one using gyrosensors (angular velocity sensors) and, as a correction optical system for camera shake correction, one relying on lens shifting.
		In this embodiment, the operating temperature of the shape memory alloy is heightened by heat treatment; however, it may be heightened by application of strain to the shape memory alloy.
	www.freepatentsonline.com /6945045.html (9716 words)

	Virtual Linux
		Operating system-level virtualization requires changes to the operating system kernel, but the advantage is native performance.
		The z/VM® is the operating system hypervisor for the System z.
		Xen is an open source paravirtualization solution that requires modifications to the guest operating systems but achieves near native performance by collaborating with the hypervisor.
	www-128.ibm.com /developerworks/linux/library/l-linuxvirt/?ca=dgr-lnxw01Virtual-Linux (3996 words)

	OS Research - Kernel Components
		This code was developed in the days when computers ran workloads that differ quite drastically from the loads that modern systems have to accommodate.
		VM+ enables operating systems to scale to large numbers of processors and modern working sets.
		By utilizing unique algorithms designed by OS Research, VM+ seamlessly integrates into existing operating systems and provides the features required by modern enterprise grade operating system kernels.
	www.osresearchllc.com /kernels.php (205 words)

	Making An Operating System Faster
		Operating system researchers do not come up with new, much faster algorithms as consistently or frequently as hardware updates happen.
		There may be close to a hundred kernel extensions that are loaded on a typical Mac OS X system, and perhaps twice as many residing in the system's "Extensions" folder(s).
		Rather than scan all these every time the system boots (or worse, every time an extension is to be loaded), Mac OS X uses caching for kernel extensions, and the kernel itself.
	www.kernelthread.com /mac/apme/optimizations (3012 words)

	IBM
		MVMRUG: Midwest VM Regional Users Group - A not-for-profit Ohio corporation focusing on bringing speakers to the area, as part of a goal to foster sharing of z/VM-related information and experience..
		MVMUA: Metropolitan VM Users Association - The oldest z/VM organization in the U.S. was formed in 1974 and serves the New York City area..
		VM Update Journal - A technical journal aimed at those supporting the systems software running on z/VM, as well as the operating system itself.
	www.opentopia.com /dir/Computers/Software/Operating_Systems/Mainframe/IBM/z-VM (487 words)

	IBM VM Operating System General FAQ
		When a system is IPL'd in a logical partition and requests that the TOD be changed, it is actually the offset in that partition's EPOCH which is changed by the SET CLOCK instruction, not the physical TOD clock.
		It is then up to the operating system to accept and process these interrupts.
		While this will not have any impact to the VM system (although TOD clock changes on a running VM system could cause problems), the physical TOD clock on this system could get out of sync with the others connected to the same ETR.
	www.vm.ibm.com /faq/vmgen.html (974 words)

	Воссоединение SQL в 1995 г.: люди, проекты, политика
		System R и большинство из этих людей - это моя молодость.
		В ранние дни System R Рей и Ирв Трайдер (Irv Traider) были двумя менеджерами под руководством Фрэнка Кинга.
		Если вы посмотрите на этот листок бумаги, на нем написано VM+
	www.citforum.ru /database/digest/sql1.shtml (1465 words)

	VM Operating System
		The VM operating system was developed by IBM in the mid-1960’s to create a system that would appear to users as a dedicated machine.
		It was designed as a test platform for developing other operating systems and allowed several control programs to operate simultaneously.
		The disadvantage to this operating system was the requirement for system programmer expertise for installation and maintenance.
	students.kennesaw.edu /~tdl4450/VM_OS.html (77 words)

	What is virtual machine? - A Word Definition From the Webopedia Computer Dictionary
		System Independence: A Java application will run the same in any Java VM, regardless of the hardware and software underlying the system.
		Security: Because the VM has no contact with the operating system, there is little possibility of a Java program damaging other files or applications.
		Because programs running in a VM are separate from the operating system, they cannot take advantage of special operating system features.
	webopedia.internet.com /TERM/v/virtual_machine.html (537 words)

	[No title]
		Many forensics methods rely their investigation in disk MAC (modify, create, access) timeline analysis after powering down the system, and that's the main reason when grugq talked about user land remote exec: there's no need to write data in disk if you can forge the system to run a memory portion emulating a kernel loader.
		Also, if it's using some system feature (let's say, runtime linking) some of the gathered information may be referred to this host linking system, and need to be rebuilt in order to work in another environments.
		The dynamic system relies in host library scheme, so we need to regenerate a new layout or restore the previous one to a generic usable dynamic system, it's: GOT recovering.
	www.phrack.com /archives/63/p63-0x0c_Process_Dump_and_Binary_Reconstruction.txt (4968 words)

	HTTPd Servers running on VM/CMS Operating System (Site not responding. Last check: )
		RHRZ of the University of Bonn (Germany) VM System -->
		University of Missouri, St. Louis Campus VM System
		West Virginia Network for Educational Telecomputing VM System
	vm.cfsan.fda.gov /vmcms.html (125 words)

	[No title]
		General Description The VM operating system was developed during the mid-1960s in order to create a virtual system that would appear to each user as a dedicated machine.
		System generation is the process that compiles the selected operating features into an executable version of the operating system.
		VM OPERATING SYSTEM REVIEW Access Controls Review General Description: The CP directory, also more broadly termed the VM directory, serves as a repository for information including the definitions of users, their CP privileges and classes, and the locations of their minidisks where data is stored.
	www.auditnet.org /docs/vmos.txt (1516 words)

	Operating Systems Notes
		The core of the operating system is the kernel, a control program that functions in privileged state (an execution context that allows all hardware instructions to be executed), reacting to interrupts from external devices and to service requests and traps from processes.
		Operating systems generally accomplish these goals by running processes in low privilege and providing service calls that invoke the operating system kernel in high-privilege state.
		An operating system transforms the physical world of devices, instructions, memory, and time into virtual world that is the result of abstractions built by the operating system.
	www.personal.kent.edu /~rmuhamma/OpSystems/Myos/osIntro.htm (582 words)

	[No title]
		While this is still the case, the importance of the operating system has grown to the point where (at least in the minds of many users) the operating system defines the machine.
		In a typical multi-user system, users are expected to know that the machine is shared by other users, and that resources such as devices are shared between all the users.
		Thus, an operating system designed for the 80386 could actually run several copies of MS-DOS and appear to the user to be several different PCs at the same time.
	www.math-cs.gordon.edu /courses/cs322/lectures/os_function.html (1566 words)

	Operating Systems
		Modern operating systems often provide users and applications with a virtual machine, an interface to the underlying hardware that makes it appear as though the user is the only user of the machine and it's hardware.
		In virtual machine operating systems an addition layer of abstraction is placed between the users and the system so that it appears to the user that they are using a machine dedicated to them.
		The operating system is responsible for switching between the jobs, now often called processes, in such a way that favored user interaction.
	www.thocp.net /software/operatingsystems/operating_systems.htm (3902 words)

	Linux on the System/390
		David Boyes ran a test under VM (VM itself was running in an LPAR of a medium-to-large System/390, from which it could use a maximum of 10% of the machine's cycles) in which he brought up 41,400 simultaneous Linux images before the virtual machine ran out of resources.
		A university (universities are traditionally good places to find underutilized mainframes with pre-existent VM licenses) might want to run an advanced operating systems or networking class where you can give each student his or her own machine.
		VM (or VIF) gives the ability to run thousands of Linux images on a single piece of hardware, which not only is a cost-effective solution for the ASP/ISP market, but is also a great opportunity to do clustering research much more simply than with a traditional, discrete-machine setup.
	www.usenix.org /publications/library/proceedings/als00/2000papers/papers/full_papers/thornton/thornton_html (5746 words)

	StorageTek has a great idea with SnapVantage
		IBM's VM operating system that exists in two forms, VM/ESA and zVM, has been in use for 35 years and is deployed with 9,400 licenses around the world.
		The creation of a Linux virtual server is done by creating a directory entry for VM and making a clone of the system, which would be a copy of the disk storage used by the operating system, and all the associated files, which comprise the virtual server.
		VM server administration – Additional VM functions that aid in administration of the Linux virtual servers such as configuration, disk queries, debug, etc. can be performed through the GUI.
	whatis.techtarget.com /tip/1,289483,sid5_gci838761,00.html (1084 words)

	VM Magic: DASD Simulation for VM
		VM Magic will allow any guest operating system, and its software, to utilize any type of DASD supported by VM without change to programs, job control language, or operating procedures.
		VM Magic operates by simulating the disk device type required by the user's software, utilizing whatever disk devices are available on the host CPU.
		As a result, VM Magic can be used to simulate most DASD configurations, limited only by the total amount of disk space available on the host processor, and the disk types supported by the VM operating system.
	www.sdisw.com /vm/vmmagic.htm (320 words)

	VM/ESA at MIT
		IBM's VM operating system (VM for short) is used around the world by over nine million people every day (whether they know it or not).
		VM is a modern time-sharing system running at a number of sites around the world.
		It is based on the concept of Virtual Machines; each VM user works in an environment which simulates (hence the term 'virtual'), and provides the full power of, a System/390 CPU (hence the term 'machine').
	mitvma.mit.edu /system/vm.html (452 words)

	An Introduction to Virtualization - openSUSE
		Paravirtualized operating system refers to an operating system that is capable of running in paravirtual mode.
		Native operating system refers to the typical operating system that is not optimized for the virtual machine environment and must run in full virtualization mode.
		In paravirtual mode, the VM-aware operating systems include special device drivers (called Xen drivers) to communicate through the VMM and VM Server to the physical devices in the computer.
	tr.opensuse.org /An_Introduction_to_Virtualization (955 words)

	Virtualization Terminology - openSUSE
		When the computer boots, the VMM loads first and then starts the VM Server in privileged mode, which means that the VM Server has the ability to create and control virtual machines and has direct access to the computer hardware.
		The VM Server is configured with native device drivers that match the actual devices in the computer.
		The operating system of each VM interacts independently with the VMM and VM Server platform to consume virtual or emulated CPU, memory, block device, and network resources.
	en.opensuse.org /Virtualization_Terminology (955 words)

	IBM mainframe software
		That collaboration has never been as strong as it is today with the announcement of the IBM System z9, with the server, the operating systems, the middleware and the storage and networking technologies being developed with a common objective.
		The result of this holistic approach to systems design: technologies that are designed to exploit each other’s strengths, enhancing the capabilities of the total system and delivering greater value to the business.
		System z Software exploits the inherent qualities of the server, creating the right operating environment for a system that is autonomic, integrated, virtualized and open.
	www-306.ibm.com /software/os/zseries/systemz9 (503 words)

	Virtual Strategy Magazine - Where Server Virtualization Was Born
		The operating systems run in virtual machines must be compliant with IBM mainframe architecture.
		The requirement for the operating system that runs in a virtual machine is adherence to IBM mainframe architecture.
		The operating systems that run in a virtual machine are VM itself, z/OS, MVS, VSE, utility operating systems, and the newest virtual machine operating system: Linux.
	www.virtual-strategy.com /article/articleview/219/1/18 (1101 words)

	Core of IT: The Virtual Machine: IBM Model
		The entire system, both Operating System and hardware is referred to as the VM System.
		The CMS is an Operating system that has been designed for a single user with a single task at a time.
		The system is stable enough after nearly thirty years of development that it is widely used in both businesses and universities as a resource-sharing system.
	cs.gmu.edu /cne/itcore/virtualmachine/ibm.htm (1379 words)

	NMSU: Information and Communication Technologies
		Our main focus is to maintain and operate the major database systems used by university software applications at New Mexico State University.
		University Systems as a division within ICT is responsible for providing administrative computing support to NMSU students, faculty, and staff.
		ICT uses the VM operating system to run Linux "guest" machines in the same manner as our Os390/Mvs system.
	ict.nmsu.edu /systems_software.html (470 words)

	Novell Documentation: Virtualization Technology - Introduction and Technology Overview
		A virtual machine (VM) is an environment which appears to its “guest” operating system as actual computer hardware but is actually simulated by a “host” computer running Xen VM Server.
		Operating systems that can run in paravirtual mode do not require hardware simulation, but instead use an API to interact with the host virtualization platform.
		The operating system of each VM interacts independently with the VMM and Xen VM Server platform to consume virtual or emulated CPU, memory, block device, and network resources.
	www.novell.com /documentation/vmserver/vm_server_admin/data/b5fw92s.html (1084 words)

	MIT IS&T: Operating Systems at MIT
		A free Unix-type operating system, with source code developed under the GNU General Public License and made freely available.
		IBM-VM IBM's VM operating system is a mainframe time-sharing system that is based on the concept of virtual machines - each VM user works virtually in a workstation environment that provides them with access to the larger mainframe.
		VM is used at MIT to run some of the Institute's mission-critical applications.
	web.mit.edu /ist/topics/os (403 words)

	Managing Operating System Resources
		Allocating and freeing operating system resources is traditionally an area of programming that is error prone.
		Different types of resource are shared on the same operating system heap, so a failure to acquire one resource may be caused by failure to free another.
		Operating system objects can have subtle limitations on when particular objects can be disposed.
	eclipse.org /articles/swt-design-2/swt-design-2.html (2990 words)

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