When electrons hit the screen the phosphor lights up

Providing larger screens than a majority of CRT televisionSimply they project the original image onto a larger screen through a lens

HD is high definition – meaning mainly higher resolutions and clearer sound over standard-definition TV

Why is this? This is because with HD there is no conversion from digital to analog signals all signals are sent digitally hence no “error in translation”

An integral part of digital television, there are many types of surround sound from 3.0 to 22.2

Surround sound simply gives sound a 3D effect giving movies more depth and immersion

When passing a current through

The different shades of the three basic colors are changed due to intensity not changing the current

It releases electrons hitting the screen causing it to light up

The more popular display in TV’s and computer screens

LCD’s have a backlight with a diffuser in front of it which spreads the light across the screen evenly

A polarizer moves the liquid crystal to change the shade and depth of the three basic color’s of each pixel.

Note: the backlight does have a half life of close to 50,000 hours.

Organic light emitting diodes

The only screen that is roll able and flexible The screen that is 200 times thinner than a human hair

Transmit 26% more backlighting to the user over LCD’s

Hopefully they will find their way into computers and will still give bright images in direct sunlight as opposed to current LCD’s and also reduce the 30% battery usage of conventional LCD’s

When a current is passed the primary mirror will form a parabola which focuses light onto the secondary mirror which will then reflect light out of the hole in the middle

What is it? What are it’s alternatives

HDMI is a single output which sends out HD video and up to 8 channels of sound digitally the cable is similar in look to a USB ….

The HDMI cable comprises of up to 19 wires in a single cable transferring up to 5GB per second

The commonly seen analog version called an RGB that only supports 2 channels of audio, supporting only stereo.

YouTube hosts over six million videos,

growing at about 20 percent every year

Takes up to 45 terabytes of storage

Note one terabyte is 1000 gigabytes

Watching Tv in the palm of your hand is the dream 3.5G and HSPDA is the realization of that

Is practically mobile broadbandIt is a new protocol for mobile communications which allows faster data transfer speed between 1.8-42Mb/S

What does it mean? Where is it going?

simply put TV when you want it

there are two was of getting TV on demand1)Video streaming (e.g youtube)

Btw that idiot is me

2) By downloading the video’s and saving them in a device (e.g . Ipod, Pc, Phone)

There are many debates on the future of TV on demand

advantages disadvantages

Watch TV whenever you want Congestion on hosting sites

Wide range of videos Indecent video’s may pass screening

More copies of video’s Copy write infringement

Live screening Less control on viewing censoring

Wide accessibility Privacy intrusion

Digital storing Piracy laws