How did those CRT TV’s from the 80’s work?

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How did those CRT TV’s from the 80’s work?

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light gets bent and then focused on phosphorescent spots on a lense that glow in certain colors depending on the light

CRT stands for a cathode ray tube. Basically it’s a device that produces a stream of electrons. A CRT television uses magnets to bend the beam to hit the pixels which light up. It sweeps along each line of pixels to draw one frame before sweeping back to the top and starting again with the next frame.