Virtual surround — is an audio system which attempts to create the perception that there are many more sources of sound than are actually present. In order to achieve this it is necessary to devise some means of tricking the human auditory system into thinking that … Wikipedia
Virtual Acoustic Space — (VAS), also known as Virtual Auditory Space, is a technique in which sounds presented over headphones appear to originate from any desired direction in space. The illusion of a virtual sound source outside the listener s head is created.Sound… … Wikipedia
Virtual water — (also known as embedded water, embodied water, or hidden water) refers, in the context of trade, to the water used in the production of a good or service. For instance, it takes 1,300 cubic meters of water on average to produce one metric tonne… … Wikipedia
Virtual management — seeks to separate certain responsibilities of managers from the actual site of production, the workers and resources at that site. It orients managers more directly to the needs of a service economy wherein commodity and product relations are no… … Wikipedia
Virtual reference — services are the remote delivery of reference source materials that are provided to users who are not inside the library. They are used by people seeking to utilize resources who are unable (or unwilling) to visit a library. Providing remote… … Wikipedia
Virtual private network — A virtual private network (VPN) 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. The link layer protocols… … Wikipedia
Virtual keyboard — This article is about the type of software. For virtual keyboard that can be projected and touched on any surface, see projection keyboard. Typing on a iPad s virtual keyboard A virtual keyboard is a software component that allows a user to enter … Wikipedia
Virtual Laboratory — The online project Virtual Laboratory. Essays and Resources on the Experimentalization of Life, 1830 1930, located at the Max Planck Institute for the History of Science, is dedicated to research in the history of the experimentalization of life … Wikipedia
Virtual Value Chain — The virtual value chain, created by John Sviokla and Jeffrey Rayport, is a business model describing the dissemination of value generating information services throughout an Extended Enterprise. This value chain begins with the content supplied… … Wikipedia
History of virtual learning environments — A virtual learning environment (VLE) is a system that creates an environment designed to facilitate teachers in the management of educational courses for their students, especially a system using computer hardware and software, which involves… … Wikipedia
History of virtual learning environments 1990s — In the history of virtual learning environments, the 1990s was a time of growth, primarily due to advent of the affordable computer and of the Internet.1990s1990* Formal Systems Inc. of Princeton, NJ, USA introduces a DOS based Assessment… … Wikipedia