The Television
|
Some stuff about the television
|
With the birth of Television, radio lost a lot
of its original programs. With millions of listeners still using radios in their cars and portable radios to listen radio moved into a new era.
In 1873 it was realized that light could be
changed into electrical impulses making it possible to transmit these over long distances and change them into light. In 1908 it was found that cathode- ray tubes could help with transmission and receiving. The first real transmission was by John Baird in London on January 27,1926. In the United States David Sarnoff and Philo Farnsworth powered the first sets in the 1930's. It wasn't until the late 1940's that local and national shows were scheduled. Live perfromances then went to videotaped shows in the 50's and then color T.V. sets come about in the 60's.
John Baird brought color T.V. to London in
1928. In December 1953 the first system to transmit in color was made in the United States. Regular televisions gave way to high definition television which took television using 525 lines of resolution to 1,125 lines and able to use wide screens.
In the late 1980's they thought it was
impossible to change a television signal to digital code. with data compression it was possible to develop digital T.V. With digital T.V. that came into play in the 1990's it offered sharper and wider pictures. Although there are some channels broadcasting in digital it it figured that not until 2006 until the digital system takes over for the current analog system. |
Back to the main page
|
To the radio
|
To the computer
|