ITProPortal.com / Techtionary

virtual storage area network

Desire Athow — Tue, 03 Jun 2008

In computer networking, a virtual storage area network (VSAN) is a collection of ports from a set of connected Fibre Channel switches, that form a virtual fabric.

virtual private server

Desire Athow — Mon, 02 Jun 2008

It is a method of partitioning a physical server computer into multiple servers such that each has the appearance and capabilities of running on its own dedicated machine.

Virtual private network

Desire Athow — Fri, 30 May 2008

It is a computer network in which some of the links between nodes are carried by open connections or virtual circuits in some larger network (e.g., the Internet) instead of by physical wires.

virtual private LAN service

Desire Athow — Thu, 29 May 2008

It is a way to provide Ethernet based multipoint to multipoint communication over IP/MPLS networks. It allows geographically dispersed sites to share an Ethernet broadcast domain by connecting sites through pseudo-wires.

virtual phone number

Desire Athow — Wed, 28 May 2008

It is a telephone number without an associated phone line. Usually these numbers are programmed to be forwarded to either a Voice over IP service, or to a different phone line, fixed or mobile.

Virtual PC

Desire Athow — Tue, 27 May 2008

Microsoft Virtual PC is a virtualization suite for Microsoft Windows operating systems, and an emulation suite for Mac OS X on PowerPC-based systems.

virtual network computing

Desire Athow — Mon, 26 May 2008

In computing, Virtual Network Computing (VNC) is a graphical desktop sharing system which uses the RFB protocol to remotely control another computer

virtual microscopy

Desire Athow — Fri, 23 May 2008

It is a method of posting microscope images on, and transmitting them over, computer networks

virtual memory

Desire Athow — Thu, 22 May 2008

It is a computer system technique which gives an application program the impression that it has contiguous working memory

virtual machine

Desire Athow — Wed, 21 May 2008

It was originally defined by Popek and Goldberg as an efficient, isolated duplicate of a real machine. Current use includes virtual machines which have no direct correspondence to any real hardware.

Virtual Keyboard

Desire Athow — Tue, 20 May 2008

It is a software and/or hardware component that allows a user to enter characters.

virtual ISP

Desire Athow — Mon, 19 May 2008

It purchases services from another ISP (sometimes called a wholesale ISP or similar within this context) that allow the VISP's customers to access the Internet via one or more Points of Presence (PoPs) that are owned and operated by the wholesale ISP.

virtual desktop manager

Desire Athow — Fri, 16 May 2008

A virtual desktop is a term used, usually within the WIMP paradigm, to describe ways in which a computer's desktop environment is expanded through the use of software

virtual desktop infrastructure (VDI)

Desire Athow — Thu, 15 May 2008

In computing, Desktop Virtualization involves separating the physical location where the PC desktop resides from where the user is accessing the PC

virtual dedicated server

Desire Athow — Wed, 14 May 2008

It is a method of partitioning a physical server computer into multiple servers such that each has the appearance and capabilities of running on its own dedicated machine

virtual community

Desire Athow — Tue, 13 May 2008

A virtual community, e-community or online community is a group of people that primarily interact via communication media such as letters, telephone, email or Usenet rather than face to face, for social, professional, educational or other purposes

virtual circuit

Desire Athow — Mon, 12 May 2008

In telecommunications and computer networks, a virtual circuit (VC), synonymous to virtual connection and virtual channel, is a connection oriented communication service that is delivered by means of packet mode communication

Microsoft Virtual PC

Desire Athow — Fri, 09 May 2008

It is a virtualization suite for Microsoft Windows operating systems, and an emulation suite for Mac OS X on PowerPC-based systems

virtual area network

Desire Athow — Thu, 08 May 2008

A virtual LAN, commonly known as a VLAN, is a group of hosts with a common set of requirements that communicate as if they were attached to the same wire, regardless of their physical location.

Virtual reality (VR)

Desire Athow — Wed, 07 May 2008

It is a technology which allows a user to interact with a computer-simulated environment, be it a real or imagined one