what's the difference between black and white television and coloured television?

Question

It's badly needed..!

Answer 1

Black and White TV uses one color of phosphor
Color uses 3 colors of phosphor.

Black and White TV uses Video amplifiers
Color uses Video Amplifiers, Color IF amps, Demodulators, and Color Sync circuits....obviously Color TVs have more circuitry than Black and White needs to develop the picture.

That's the major differences between the two systems.

Answer 2

White Television

Answer 3

A color TV set has three sets of phosphors (red, green, and blue), while a B/W TV has just one (white). A picture tube for a B/W set has a single electron gun, which emits a beam of electrons that are swept across the screen by magnetic fields from two coils at the neck of the picture tube. A color tube has three guns, whose beams are contrived to hit the separate color phosphors by being directed through a mask -- a sheet of metal with thousands of carefully positioned tiny holes. The color set has extra electronics to extract the color information from the broadcast signal and drive the three electron guns. A B/W set will ignore the color information in the signal. If a color set is receiving a B/W signal, a special circuit called the color killer notices that the color information is missing and causes all three guns to be driven equally.

Answer 4

Well now, I am buggered if I am going to waste my time with a load of typing for 2 miserable points ,most of the others answer are good ! some are detailed and factual a couple of few words but still give a good answer, The answer I like most however for sheer fanciful imagination and excellent comedy writing is from FortyTwo !!Cheers Pete
Note I am a qualified TV Tech ( and a literary critic )

Answer 5

it truly is no longer genuine that each and each one members of the "White race" have accomplished those issues; no man or woman has accomplished all of them. No unmarried man or woman invented each little thing, from scratch. Race is a bogus theory. there is not any coherent thanks to divide the human race right into a chain of exhaustive and unique diverse kinds. BTW, it became Black Africans who colonized the completed global. Your assumption that NO Blacks (or Asians, or absolutely everyone else) had something to do with technological progression is thoroughly idiotic. Your 2d paragraph is thoroughly incorrect. were you born mind-damaged, or did it take position later? What those who've a mind do is decide persons.

Answer 6

BW TVs are sets, they are called sets because they are set to receive a 50mhz Signal from a broadcast tower.
The pixels in a BW TV are Linear Lines. sorta.
Color TVs are also SET to receive the 50mhz, but at a repeater rate the Pixels and Subpixels, The signal is transmitted into the RGB spectrum.
An RGB TV is capable of receiving and decoding BW Transmissions in the Linear Stream.
The Circuitry and the Tube are what is different. The Color TV can play the BW signal. That is called Reverse Engineering.

Answer 7

A color TV has colors while a black and white TV only has black, white and grey color ? Used to own one back in the 70s.

Answer 8

On a B&W, each pixel allows just bright and darkness.

On a Colour, each pixel can be Red, Green or Blue (RGB) or dark.

Electrons hit these pixels and they light up. Thousands of these pixels together form a picture.

Answer 9

3 guns instead of 1
3 pictures are overlaid from 3 sources to creat all the colours
black and white just one projection

Answer 10

I' m not a tech expert - but i'm pretty sure it's the TUBE that is inside that allows the color to come through !

Hope someone can give u a better one ...sorry