Virtual may refer to: *

Virtual (horse) Virtual (foaled 10 May 2005) is a thoroughbred racehorse who won the Lockinge Stakes at Newbury in 2009. Virtual is a bay horse who was sired by Pivotal out of Virtuous. He was bred and owned by Cheveley Park Stud and trained by John Gosden at ...

, a thoroughbred racehorse *

Virtual channel In most telecommunications organizations, a virtual channel is a method of remapping the ''program number'' as used in H.222 Program Association Tables and Program Mapping Tables to a channel number that can be entered via digits on a receiver's ...

, a channel designation which differs from that of the actual radio channel (or range of frequencies) on which the signal travels *

Virtual function In object-oriented programming, in languages such as C++, and Object Pascal, a virtual function or virtual method is an inheritable and overridable function or method for which dynamic dispatch is facilitated. This concept is an important part o ...

, a programming function or method whose behaviour can be overridden within an inheriting class by a function with the same signature *

Virtual machine In computing, a virtual machine (VM) is the virtualization/emulation of a computer system. Virtual machines are based on computer architectures and provide functionality of a physical computer. Their implementations may involve specialized hardw ...

, the virtualization of a computer system *

Virtual meeting Web conferencing is used as an umbrella term for various types of online conferencing and collaborative services including webinars (web seminars), webcasts, and web meetings. Sometimes it may be used also in the more narrow sense of the peer-le ...

, or web conferencing *

Virtual memory In computing, virtual memory, or virtual storage is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine" which "creates the illusion to users of a very l ...

, a memory management technique that abstracts the memory address space in a computer *

Virtual particle A virtual particle is a theoretical transient particle that exhibits some of the characteristics of an ordinary particle, while having its existence limited by the uncertainty principle. The concept of virtual particles arises in the perturbat ...

, a type of short-lived particle of indeterminate mass *

Virtual reality Virtual reality (VR) is a simulated experience that employs pose tracking and 3D near-eye displays to give the user an immersive feel of a virtual world. Applications of virtual reality include entertainment (particularly video games), educ ...

(virtuality), computer programs with an interface that gives the user the impression that they are physically inside a simulated space *

Virtual world A virtual world (also called a virtual space) is a computer-simulated environment which may be populated by many users who can create a personal avatar, and simultaneously and independently explore the virtual world, participate in its activities ...

, a computer-based simulated environment populated by many users who can create a personal avatar, and simultaneously and independently explore the world, participate in its activities and communicate with others * ''Virtual'', a 2001 album by Romanian band Animal X * Virtual, a former Blizzard Entertainment online streamer known for interviewing Ng Wai Chung during the ''Blitzchung Controversy'' *

Exit pupil In optics, the exit pupil is a virtual aperture in an optical system. Only rays which pass through this virtual aperture can exit the system. The exit pupil is the image of the aperture stop in the optics that follow it. In a telescope or compoun ...

, a virtual aperture in an optical system

See also