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Video Conference - R.D.sivakumar
1. Video Conference
AUTHOR
R.D.SIVAKUMAR,M.Sc.,M.Phil.,M.Tech.,
Assistant Professor of Computer Science &
Assistant Professor and Head, Department of M.Com.(CA),
Ayya Nadar Janaki Ammal College,
Sivakasi â 626 124.
Mobile: 099440-42243
e-mail : sivamsccsit@gmail.com
website: www.rdsivakumar.blogspot.in
CO-AUTHOR
K.SIVAKAMI, B.Com. (CA)
Student of M.Com. (CA)
Ayya Nadar Janaki Ammal College,
Sivakasi â 626 124.
2. A video conference is a set of interactive
telecommunication technologies which allow two or
more locations to interact via two-way video and
audio transmissions simultaneously.
Video Conference
3. ⢠It has also been called âvisual collaborationâ and is
type of groupware.
⢠Videoconferencing differs from videophone calls in
that itâs designed to serve a conference rather than
individuals.
Video Conference
4. ⢠It is an intermediate form of video telephony, first
deployed commercially by AT&T during the early
1970s using their Picture Phone technology.
Video Conference
5. ⢠An older Polycom VSX 7000 system and camera
used for videoconferencing, with two displays for
simultaneous broadcast from separate locations.
Video Conference
6. ⢠The core technology used in a videoconferencing
system is digital compression of audio and video
streams in real time.
⢠The hardware or software that performs compression
is called a codec (coder/decoder).
Video Conference
7. ⢠The use of audio modems in transmission line allow
for the use of POTS, or the Plain Old Telephone
System, in some low-speed applications, such as
video telephony, because they convert the digital
pulses to/from analog waves in the audio spectrum
range.
Video Conference
8. The other components required for a videoconferencing
system include:
⢠Video input: Video camera or webcam
⢠Video output: computer monitor, television or LCD
projector.
Video Conference
9. ⢠Audio input: microphones, CD/DVD player, cassette
player, or any other source of PreAmp audio outlet.
⢠Audio output: usually loudspeakers associated with
the display device or telephone
Video Conference
10. Data transfer: analog or digital telephone network,
LAN or Internet
Video Conference
11. There are basically two kinds of videoconferencing
systems:
Dedicated systems:
They have all required components
packaged into a single piece of equipment,
usually a console with a high quality remote
controlled video camera.
Video Conference
12. Desktop systems:
They are add-ons (hardware boards,
usually) to normal PCS, transforming them
into videoconferencing devices.
Video Conference
13. Impact on education
⢠Videoconferencing provides students with the
opportunity to learn by participating in a 2-way
communication platform.
14. ⢠Furthermore, teachers and lectures from all over the
world can be brought to classes in remote or
otherwise isolated places.
Impact on education
15. ⢠Students from diverse communities and backgrounds
can come together to learn about one another.
⢠Students are able to explore, communicate, analyze
and share information and ideas with one another.
Impact on education
16. ⢠Through videoconferencing students can visit another
part of the world to speak with others, visit a zoo, a
museum and so on, to learn.
Impact on education
17. ⢠These âvirtual field tripsâ can bring opportunities to
children, especially those in geographically isolated
locations, or the economically disadvantaged.
Impact on education
18. ⢠Small schools can use this technology to pool
resources and teach courses (such as foreign
languages) which could not otherwise be offered.
Impact on education
19. Here are a few examples of how videoconferencing can
benefit people around campus:
⢠Faculty member keeps in touch with class while away
for a week at a conference
⢠Guest lecturer brought into a class from another
institution
Impact on education
20. ⢠Researcher collaborates with colleagues at other
institutions on a regular basis without loss time due to
travel.
⢠Schools with multiple campuses can collaborate and
share professors
Impact on education
21. ⢠Faculty member participates in a thesis defense at
another institution
⢠Administrators on tight schedules collaborate on a
budget preparation from different parts of campus
Impact on education
22. ⢠Faculty committee auditions a scholarship candidate
⢠Researcher answers questions about a grant proposal
from an agency or review committee
⢠Student interviews with an employer in another city
⢠Tele-seminars
Impact on education