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Hub AI
Webcast AI simulator
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Hub AI
Webcast AI simulator
(@Webcast_simulator)
Webcast
A webcast is a media presentation distributed over the Internet using streaming media technology to distribute a single content source to many simultaneous listeners/viewers. A webcast may either be distributed live or on demand. Essentially, webcasting is "broadcasting" over the Internet.
The largest "webcasters" include existing radio and TV stations, who "simulcast" their output through online TV or online radio streaming, as well as a multitude of Internet-only "stations". Webcasting usually consists of providing non-interactive linear streams or events. Rights and licensing bodies offer specific "webcasting licenses" to those wishing to carry out Internet broadcasting using copyrighted material.
Webcasting is used extensively in the commercial sector for investor relations presentations (such as annual general meetings), in e-learning (to transmit seminars), and for related communications activities. However, webcasting does not bear much, if any, relationship to web conferencing, which is designed for many-to-many interaction.
The ability to webcast using cheap/accessible technology has allowed independent media to flourish. There are many notable independent shows that broadcast regularly online. Often produced by average citizens in their homes they cover many interests and topics. Webcasts relating to computers, technology, and news are particularly popular and many new shows are added regularly.
Webcasting differs from podcasting in that webcasting refers to live streaming while podcasting simply refers to media files placed on the Internet.
The term "webcast" had previously been used to describe the distribution of Web or Internet content using conventional broadcast technologies such as those intended for digital video (Digital Video Broadcasting) and audio (Digital Audio Broadcasting), and in some cases even leveraging analogue broadcasting techniques traditionally used by Teletext services to deliver a limited "Best of the Web" selection of content to audiences. Overnight broadcasts of data via analogue television signals were claimed by WebTV representatives to be able to offer "a fresh gigabyte of data every day... while you sleep". Typically, webcasting referred to a form of datacasting involving higher bandwidth broadcast technologies delivering Web content, multimedia files in particular, and with any interactivity supported by lower bandwidth return channels such as dial-up Internet access over the public telephone network or communication over mobile telephone networks. Such return channels conveyed each user's requests for the delivery of specific content over the broadcast medium. Eventually, DVB satellite operators were to offer a higher bandwidth return channel using DVB-RCS, raising the prospect of "point-to-point connections with users' satellite dishes". Webcasting had been regarded as a way of providing higher bandwidth Internet access to home computer users as well as enabling television-based Internet access, driving the development of smart television products.
The earliest graphically oriented web broadcasts were not streaming video, but were in fact still frames which were photographed with a web camera every few minutes while they were being broadcast live over the Internet. These broadcasts were not referred to as "webcasts" at the time. One of the earliest instances of sequential live image broadcasting was in 1991 when a camera was set up next to the Trojan Room in the computer laboratory of the University of Cambridge. It provided a live picture every few minutes of the office coffee pot to all desktop computers on that office's network. A couple of years later its broadcasts went to the Internet, became known as the Trojan Room Coffee Pot webcam, and gained international notoriety as a feature of the fledgling World Wide Web.
In April 1995, a program called Webcast, from the National Center for Supercomputing Applications (NCSA) was demonstrated at the Third International World Wide Web Conference (now known as The Web Conference) in Darmstadt, Germany. Webcast used NCSA Mosaic for X to broadcast pages from the lecturer's browser to other connected browsers on the Mbone in real time.
Webcast
A webcast is a media presentation distributed over the Internet using streaming media technology to distribute a single content source to many simultaneous listeners/viewers. A webcast may either be distributed live or on demand. Essentially, webcasting is "broadcasting" over the Internet.
The largest "webcasters" include existing radio and TV stations, who "simulcast" their output through online TV or online radio streaming, as well as a multitude of Internet-only "stations". Webcasting usually consists of providing non-interactive linear streams or events. Rights and licensing bodies offer specific "webcasting licenses" to those wishing to carry out Internet broadcasting using copyrighted material.
Webcasting is used extensively in the commercial sector for investor relations presentations (such as annual general meetings), in e-learning (to transmit seminars), and for related communications activities. However, webcasting does not bear much, if any, relationship to web conferencing, which is designed for many-to-many interaction.
The ability to webcast using cheap/accessible technology has allowed independent media to flourish. There are many notable independent shows that broadcast regularly online. Often produced by average citizens in their homes they cover many interests and topics. Webcasts relating to computers, technology, and news are particularly popular and many new shows are added regularly.
Webcasting differs from podcasting in that webcasting refers to live streaming while podcasting simply refers to media files placed on the Internet.
The term "webcast" had previously been used to describe the distribution of Web or Internet content using conventional broadcast technologies such as those intended for digital video (Digital Video Broadcasting) and audio (Digital Audio Broadcasting), and in some cases even leveraging analogue broadcasting techniques traditionally used by Teletext services to deliver a limited "Best of the Web" selection of content to audiences. Overnight broadcasts of data via analogue television signals were claimed by WebTV representatives to be able to offer "a fresh gigabyte of data every day... while you sleep". Typically, webcasting referred to a form of datacasting involving higher bandwidth broadcast technologies delivering Web content, multimedia files in particular, and with any interactivity supported by lower bandwidth return channels such as dial-up Internet access over the public telephone network or communication over mobile telephone networks. Such return channels conveyed each user's requests for the delivery of specific content over the broadcast medium. Eventually, DVB satellite operators were to offer a higher bandwidth return channel using DVB-RCS, raising the prospect of "point-to-point connections with users' satellite dishes". Webcasting had been regarded as a way of providing higher bandwidth Internet access to home computer users as well as enabling television-based Internet access, driving the development of smart television products.
The earliest graphically oriented web broadcasts were not streaming video, but were in fact still frames which were photographed with a web camera every few minutes while they were being broadcast live over the Internet. These broadcasts were not referred to as "webcasts" at the time. One of the earliest instances of sequential live image broadcasting was in 1991 when a camera was set up next to the Trojan Room in the computer laboratory of the University of Cambridge. It provided a live picture every few minutes of the office coffee pot to all desktop computers on that office's network. A couple of years later its broadcasts went to the Internet, became known as the Trojan Room Coffee Pot webcam, and gained international notoriety as a feature of the fledgling World Wide Web.
In April 1995, a program called Webcast, from the National Center for Supercomputing Applications (NCSA) was demonstrated at the Third International World Wide Web Conference (now known as The Web Conference) in Darmstadt, Germany. Webcast used NCSA Mosaic for X to broadcast pages from the lecturer's browser to other connected browsers on the Mbone in real time.