Television is a well-known telecommunications media broadcast receiver that serves as a moving picture and its voice, whether it is a monochrome (black and white) and color. The word "television" is a combination of words tele (τῆλε, "far") from the Greek and visio ("vision") of the Latin language, so that television can be interpreted as a "means of distance communication that uses visual media / vision."
The use of the word "television" itself can also refer to the "TV box", "television", or "TV transmission". Television is paralleled with the invention of the wheel, because this discovery could change the world civilization. In Indonesia 'television' is not formally often referred to as TV (read: television, television or tipi.)
Television box was first sold commercially since the 1920s, and since then television has become a regular item in the home, business offices, and institutions, in particular as a source of demand for entertainment and news, and become the advertising medium. Since the 1970s, the emergence of video tapes, laser discs, DVDs and now Blu-ray discs, it also makes the box to the television as a tool to view the broadcast material and recording the results. In recent years, the television broadcast can be accessed via the Internet, for example through the iPlayer and Hulu.
Although there are other forms of television as closed circuit television, but the type most commonly used television is television broadcasting, which is based on radio broadcasting system that was developed around 1920, using a high-powered radio frequency transmitter for transmitting television receiver to television waves.
TV broadcasting is usually transmitted via radio waves in the VHF and UHF frequency bands defined between 54-890 megahertz . Now a wave of TV also emits sounds kind of stereo or roving in many countries. Until 2000, broadcast TV is transmitted in analog waveforms, but lately the public and private broadcasting companies are now switching to digital broadcasting technology.
A television box consists of an assortment of electronic circuits therein, including the receiver circuit and catcher wave broadcasting. Visual display devices that do not have a signal receiving device commonly referred to as a monitor, rather than television. A television system can be used in a variety of uses technologies such as analog (PAL, NTSC, SECAM), digital (DVB, ATSC, ISDB etc.) Or high definition (HDTV). Television system is now also used for observation of an event, controlling industrial processes, and guidance of weapons, especially to places that are usually too dangerous to be observed directly.
Television amateur (ham TV or ATV) is used for experiments and public entertainment activities are run by amateur radio operators. TV stations amateur has been used in urban areas before the emergence of commercial TV stations.
Television has played an important role in the socialization of the 20th century and the 21st. In 2010, iPlayer is used in aspects of social media in the form of internet television services, among them are Facebook and Twitter.