Television (TV)
Television (TV) is a widely used telecommunication medium
for transmitting and receiving moving images, either monochromatic
("black and white") or color, usually accompanied by sound. This
phenomenal box has evolved with time over the years there have been more
and more changes regarding it as it has been the centre of attention
in almost every house.
A standard television set comprises multiple internal electronic
circuits, including those for receiving and decoding broadcast signals.
A visual display device which lacks a tuner is properly called a
monitor, rather than a television. A television system may use
different technical standards such as digital television (DTV) and
high-definition television (HDTV). Television
systems are also used for surveillance, industrial process control, and
guiding of weapons, in places where direct observation is difficult or
dangerous.
The media box is still altering itself from black and white to colour,
just when you think it has reached its destination you get surprised; A
plasma display panel (PDP) is a type of flat panel display common to
large TV displays (80 cm or larger). Many tiny cells between just two
panels of glass hold a mixture of noble gases. Liquid-crystal display
televisions (LCD TV) are television sets that use LCD technology to
produce images. LCD televisions are thinner and lighter than CRTs of
similar display size, and are available in much larger sizes.
High-definition television (or HDTV, or just HD) refers to video having
resolution substantially higher than traditional television systems
(standard-definition TV, or SDTV, or SD). HD has one or two million
pixels per frame; roughly five times that of SD. Early HDTV
broadcasting used analog techniques, but today HDTV is digitally
broadcast using video compression. A 3D
television is a television set that employs techniques of 3D
presentation, such as stereoscopic capture, multi-view capture, or 2D
plus depth, and 3D display—a special viewing device to project a
television program into a realistic three-dimensional field.
