virtual+point+source

См. также в других словарях:

• virtual focus — n a point from which divergent rays (as of light) seem to emanate but do not actually do so (as in the image of a point source seen in a plane mirror) * * * the point at which divergent rays would intersect if prolonged backward …   Medical dictionary

• virtual focus — noun 1. : a point from which divergent rays (as of light) seem to emanate but do not actually do so (as in the image of a point source seen in a plane mirror) 2. : a point toward which convergent rays are directed but which being intercepted they …   Useful english dictionary

• 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

• Source (game engine) — Source engine …   Wikipedia

• Virtual ground — In the theory of electrical networks, a virtual ground ( or virtual earth) is a node of the circuit that is maintained at a steady reference potential, without being connected directly to the reference potential. In some cases the reference… …   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 machine — A virtual machine (VM) is a completely isolated guest operating system installation within a normal host operating system .[1] Modern virtual machines are implemented with either software emulation or hardware virtualization or (in the most… …   Wikipedia

• Virtual world — A virtual world is an online community that takes the form of a computer based simulated environment through which users can interact with one another and use and create objects.[1] The term has become largely synonymous with interactive 3D… …   Wikipedia

• Virtual image — In optics, a virtual image is an image in which the outgoing rays from a point on the object never actually intersect at a point. A simple example is a flat mirror where the image of oneself is perceived at twice the distance from yourself to the …   Wikipedia

• Point-to-Point Protocol over Ethernet — PPPoE, Point to Point Protocol over Ethernet, is a network protocol for encapsulating Point to Point Protocol (PPP) frames inside Ethernet frames. It is used mainly with ADSL services where individual users connect to the ADSL transceiver (modem) …   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