week7 Television1

1. Television-1
Digital Contents
20102650
Ha Yu Jin

2. Television
Definition of television
Television (TV) is a telecommunication medium for
transmitting and receiving moving images that can be
monochrome (black-and-white) or colored, with or without
accompanying sound. "Television" may also refer
specifically to a television set, television programming, or
television transmission. The etymology of the word has a
mixed Latin and Greek origin, meaning "far sight": Greek tele
(τῆλε), far, and Latin visio, sight (from video, vis- to see, or to
view in the first person).

3. Television

History of television
- In its early stages of development, television employed a
combination of optical, mechanical and electronic
technologies to capture, transmit and display a visual image.
- By the late 1920s, however, those employing only optical and
electronic technologies were being explored.

4. Television
- All modern television systems relied on the latter, although
the knowledge gained from the work on electromechanical
systems was crucial in the development of fully electronic
television.
- The first images transmitted electrically were sent by early
mechanical fax machines, including the pantelegraph,
developed in the late nineteenth century.

5. Television
- The concept of electrically powered transmission of
television images in motion was first sketched in 1878 as the
telephonoscope, shortly after the invention of the telephone.
- At the time, it was imagined by early science fiction authors,
that someday that light could be transmitted over copper
wires, as sounds were.

6. Television

Programming
- Getting TV programming shown to the public can happen in
many different ways. After production the next step is to
market and deliver the product to whatever markets are
open to using it. This typically happens on two levels.
1. Original Run or First Run
2. Broadcast syndication

7. Television
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Reference
http://wikipedia.org
http://www.naver.com