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Web Conferencing


1. Introduction: The term webinar is a portmanteau of web and seminar, meaning a presentation, lecture, or workshop that is transmitted over the web. Web conferencing refers to a service that allows conferencing events to be shared with remote locations. These are sometimes referred to as webinars, interactive conferences, and online workshops and so on. The service allows real-time point-to-point communications as well as multicast communications from one sender to many receivers. It offers data streams of text-based messages, voice and video chat to be shared simultaneously, across geographically dispersed locations. The web conferencing software may show participants an image of the presenter's computer screen. Again, depending upon the product, the software may show the entire visible desktop area or may allow selection of a physical area or application running on the presenter's computer.

2. Component of Web Conferencing: The components that are required for a web conferencing system include:
a) Video Input: Video camera or webcam.
b) Video Output: Computer monitor, television or projector.
c) Audio Input: Microphones, CD/DVD player, cassette player, or any other source of audio outlet.
d) Audio Output: Usually loudspeakers associated with the display device or telephone.
e) Data Transfer Medium: Analog or digital telephone network, LAN or Internet
f) Computer: A data processing unit that ties together the other components, does the compressing and decompressing, and initiates and maintains the data linkage via the network.
g) Software: Some web conferencing solutions require additional software to be installed (usually via download) by the presenter and participants, while others eliminate this step by providing physical hardware or an appliance. In general, system requirements depend on the vendor.

3. Applications of Web Conferencing: Applications for web conferencing include meetings, training events, lectures, or short presentations from any computer. Other typical features of a web conference include: slideshow presentations, live or streaming video, Voice over IP (VoIP), Web tours, meeting recording, whiteboard, text chat, screen sharing/desktop sharing/application sharing and so on.

4. Examples: There are many web conferencing softwares are available for Linux, Mac OS X, and Windows platforms. Many of the applications support the use of videoconferencing. A few well known video conferencing service providers are listed below-

Sl. No.
Name
URL
1)       
Google Meet
(https://meet.google.com‎)
2)       
ooVo
(http://www.oovoo.com)
3)       
Skype
(http://www.skype.com)
4)       
Zoom
(https://zoom.us)
5)       
Youtube Live
Table: Web Conferencing Service Providers

5. Conclusion: Web conferencing may be used as an umbrella term for web seminars or webinars, webcasts, and peer-level web meetings. Vendor-hosted web conferencing is usually licensed as a service based on one of three pricing models: a fixed cost per user per minute, a monthly or annual flat fee allowing unlimited use with a fixed maximum capacity per session, or a sliding rate fee based on the number of allowed meeting hosts and per-session participants.



How to Cite this Article?
APA Citation, 7th Ed.:  Barman, B. (2020). A comprehensive book on Library and Information Science. New Publications.
Chicago 16th Ed.:  Barman, Badan. A Comprehensive Book on Library and Information Science. Guwahati: New Publications, 2020.
MLA Citation 8th Ed:  Barman, Badan. A Comprehensive Book on Library and Information Science. New Publications, 2020.

Badan BarmanBadan Barman at present working as an Assistant Professor in the Department of Library and Information Science, Gauhati University, Guwahati-781014, Assam, India. He is the creator of the LIS Links (http://www.lislinks.com) - India’s most popular social networking website for Library and Information Science professionals. He also created the UGC NET Guide (http://www.netugc.com) and LIS Study (http://www.lisstudy.com) website.

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