Friday, December 7, 2012

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.

You must be know television? Yes this electronic is very useful for us. This thing can give us entertainment,information,news or maybe income. Yes,this thing is very important to us. But do you know the history of this electronic.

Television was records the work of numerous engineers and inventors in several countries over many decades. The fundamental principles of television were initially developed using electromechanical methods to scan, transmit and reproduce an image. As electronic camera and display tubes were perfected, electromechanical television gave way to all-electronic broadcast television systems in nearly all applications.

Yeah,television was never one person's vision -- as early as the 1820s, the idea began to germinate.  Certainly by 1880, when a speculative article appeared in The Scientific American magazine, the concept of a working television system began to spread on an international scale. 
At the dawn of the twentieth century, there were a few American laboratories leading the way: Bell, RCA, and GE.  It wasn't until 1927, when 21-year-old Philo Farnsworth, beat everyone to the punch by producing the first electronic television picture.  This historic breakthrough catapulted him into a decades-long patent battle against major corporations, including RCA and CBS.   The battle took its toll on everyone and RCA’s David Sarnoff brilliantly marketed this invention to the public and became known as the father of television -- while Philo Farnsworth died in relative obscurity.
Experimental broadcast television began in the early 1930s, transmitting fuzzy images of wrestling, music and dance to a handful of screen.  It wasn't until the 1939 World's Fair in New York, where RCA unveiled their new NBC TV studios in Rockefeller Plaza, that network television was introduced. A few months later, William Paley’s CBS began broadcasting from its new TV studios in Grand Central Station.

Now Television or often called TV is become major consumption for people in the world





Sales of televisions

North American consumers purchase a new television every seven years, and the average household owns 2.8 televisions. As of 2011, 48 million are sold each year, at an average price of $460 and size of 38 inches.
Televisions for consumer purchase
Worldwide large-screen television technology brand revenue share in Q1, 2012
Rank Manufacturer DisplaySearch[45]
1 SAMSUNG 26.0%
2 LG 14.6%
3 Sony 9.4%
4 Sharp Corporation 6.5%
5 Panasonic 5.3%

Others 38.3%
  • Note: Vendor shipments are branded shipments and exclude OEM sales for all vendors
Worldwide TV Shipments by Technology in Q1, 2012
Technology DisplaySearch
LCD TV 84.2%
PDP TV 5.8%
OLED TV 0.0%
CRT TV 9.9%
RPTV 0.0%
Total 100%
  • Note: Vendor shipments are branded shipments and exclude OEM sales for all vendors