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V

Videocassette

A means for recording (with the aid of a video camera) and playing back (through a television) video material with accompanying soundtrack. Most videocassettes record in the analogue VHS format, although a variety of specialist, digital formats have evolved in recent years for integration into digital camcorders. In a learning context, videocassettes are most likely to be used for recording student role-plays, presentations and similar activities for subsequent playback with feedback or for recording TV programmes off-air. As a pure playback device, videocassettes are gradually being superceded by DVDs and online video streaming.

Videodisc

Sometimes known as 'laserdisc'. Now largely obsolete, videodiscs are 12" analogue, laser-read devices, used primarily for the display of video material with accompanying soundtrack, but also capable of displaying still images. Videodiscs can be used on a stand-alone basis or connected to a computer to permit what used to be called 'interactive video'. A videodisc can store 36 minutes of video and stereo audio per side or more than 50,000 still frames.

Virtual classroom

A virtual classroom is form of web conferencing that integrates many real-time online communication facilities, including text chat, slide presentations, audio/video conferencing, electronic whiteboards and application sharing. Virtual classrooms differ only marginally from mainstream web conferencing, in that they integrate with learning management systems and can provide features such as interactive questions, activities in syndicate groups and evaluation forms.

Virtual classrooms can be used to host one-to-one coaching, small group discussions, classes and seminars (often labelled as 'webinars'). Sessions rarely last longer than an hour.

The most popular virtual classroom packages are Centra, Interwise, Webex and Microsoft LiveMeeting and Breeze.


Vodcast

A vodcast is a piece of video made available in for playback on portable media players such as the new video iPods or on PCs. Using news reader programs and music software such as iTunes, users can have new vodcasts from selected sources automatically downloaded and copied to their portable players.

VOIP

VOIP (Voice Over Internet Protocol), also known as Internet telephony, is a form of instant messaging (see separate entry) in which parties communicate with each other online using voice, avoiding telephone call charges. The most famous VOIP program is called Skype.