Screencast

A screencast is a agenda recording of computer awning output, aswell accepted as a video awning capture, generally absolute audio narration. The appellation screencast compares with the accompanying appellation screenshot; admitting screenshot is a account of a computer screen, a screencast is about a cine of the changes over time that a user sees on a computer screen, added with audio narration.

Origin of the term

In 2004, columnist Jon Udell arrive readers of his blog to adduce names for the arising genre.1 Udell called the appellation "screencast", which was proposed by both Joseph McDonald and Deeje Cooley.2

The agreement "screencast" and "Screencam" are generally acclimated interchangeably,34 due to the bazaar access of ScreenCam as an screencasting artefact of aboriginal 1990s.5 ScreenCam, however, is a federal brand in the United States, admitting screencast is not trademarked and has accustomed use in publications as allotment of Internet and Computing vernacular

Uses

Screencasts can advice authenticate and advise the use of software features. Creating a screencast helps software developers appearance off their work. Educators may aswell use screencasts as addition agency of amalgam technology into the curriculum. Students can almanac video and audio as they authenticate the able action to break a botheration on an alternate whiteboard.

Screencasts are advantageous accoutrement for accustomed software users as well: They advice filing address bugs in which the screencasts yield the abode of potentially cryptic accounting explanations; they advice assuming others how a accustomed assignment is able in a specific software environment.

Organizers of seminars may accept to commonly almanac complete seminars and accomplish them accessible to all attendees for approaching advertence and/or advertise these recordings to humans who cannot allow the fee of the reside academy or do not accept the time to appear it. This will accomplish an added acquirement beck for the organizers and makes the ability accessible to a broader audience.

This action of recording seminars is already broadly acclimated in fields area application a simple video camera or audio recorder is acceptable to accomplish a advantageous recording of a seminar. Computer-related seminars charge top superior and calmly clear recordings of awning capacity which is usually not accomplished by a video camera that annal the desktop.

Hardware

An alternative solution for capturing a screencast is the use of a hardware RGB or DVI frame grabber card. This approach does not have the OpenGL limitations mentioned above, and places the burden of the recording and compression process on a machine separate from the one generating the visual material being captured.8