Television

Television is a telecommunication medium that serves as the recipient of the famous broadcast moving images with sound, whether it is monochrome (black and white) or color. The word "television" is a combination of the words tele (τῆλε, "far") from the Greek and visio ("vision") from the Latin, so the 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 "television box", "television", or "transmission of television". The discovery of television juxtaposed with the invention of the wheel, because this discovery could change the world civilization. In Indonesia 'television' is often referred to informally with the TV (read: a television, TV 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, particularly as a source of demand for entertainment and news as well as the advertising media. Since the 1970s, the emergence of video tapes, laser discs, DVDs and now Blu-ray discs, it also makes boxes for television as a tool to view a recorded broadcast material as well. In recent years, television has broadcast can be accessed via the Internet, for example through the iPlayer and Hulu.

A group of American families are watching TV, 1958

Although there are other forms of television such as closed circuit television, but the type most commonly used television is television broadcasting, which is based on a radio broadcasting system that was developed around the 1920's, using high-powered radio frequency transmitter to transmit television waves into waves of television receivers.

Broadcast TV is usually transmitted via radio waves in the VHF and UHF frequency bands defined between 54-890 megahertz [1]. Now the TV waves have also emit the type sound or stereo sound around in many countries. Through 2000, broadcast TV waves emitted in the form of analog, but recent public and private broadcast companies are now switching to digital broadcasting technology.

A television box consists of a variety of electronic circuits therein, including receiver circuitry, and catcher wave broadcasting. Visual display devices that do not have a signal receiving device is usually referred to as a monitor, rather than television. A television system may 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, control of industrial processes, and directives of weapons, especially to places that are usually too dangerous to be observed directly.

Television amateur (ham TV or ATV) is used for public entertainment activities and experiments that are run by amateur radio operators. Amateur TV stations have been used in urban areas before the appearance of commercial TV stations. [2]

Television has played an important role in the socialization of the 20th century and 21. In 2010, the iPlayer is used in aspects of social media in the form of Internet television services, including among them Facebook and Twitter. [3]