4. Transmission
Process Of Sending, Propagating And Receiving An Analogue
Or Digital Information Signal Over A Physical Point-to-point Or Point-to-
multipoint Transmission Medium, Either Wired, Optical Fiber Or Wireless.
AMERICAN TELECOM & TELEGRAPH (1875)
(Alexander Graham Bell, Gardiner Hubbard and Thomas Sanders)
•(1892-mid 1900s): Copper wire strung on poles for long distance calls. (1914):
Vacuum-tube repeaters: thinner and longer wires
•AT&T pioneered satellite communications. On July 10, 1962, NASA launched
AT&T’s Telstar 1, the world’s first active communications satellite.
FIRST LIVE TRANMISSION PTV – 26TH NOVEMBER,1964
6. PRESENTATION IN REAL-TIME IN THE PRESENCE
OF THE ACTIVE AND LIABLE STAFF
LIVE RADIO LIVE TELEVISION
• Radio broadcast without any delay. • Television production broadcast in
• Before television was introduced,
real-time, as events happen, in
audiences listened to live dramas,
comedies, quiz shows, and concerts on the present.
the radio much the same way that they • Morning shows, breaking news,
now do on TV.
entertainment shows (award
• Most talk radio is live radio where people
functions or tributes).
can speak (anonymously) about their
opinions/lives.
• Cricket commentary can also be listened
on radios live.
7. On going trends
LIVE BLOGGING LIVE STREAMING
Blog post which is intended to provide Multimedia that is constantly received
a rolling textual coverage of an ongoing by and presented to an end-user while
being delivered by a streaming provider.
event, similar to Live television or live
radio. •Delivers live over the Internet, involves:
– camera for the media,
•Single post – continuously updated – an encoder to digitize the content,
– a media publisher, and
with time stamps.
– a content delivery network to
•Events including sports games, distribute and deliver the content.
elections ceremonies, conferences, •A broadband speed of 2.5 Mbps or more is
conventions and gatherings, protests recommended for streaming movies.
and conflicts natural events and •Podcast and webcast also come under
streaming media.
disasters are live blogged normally.
9. BOTTOM LINE
LIVE
SHOWS/STREAMING/BLOGGING/TRANSMISS
ION HAS A BOOMING FUTURE.
Blog editor, Matt Wells, contended that live blogs,
rather than being the "death of journalism", will
actually be the "embodiment of its future”.