1.This type of monitor has an electron gun that shoots a beam of electrons towards the screen coated with phosphors.
1 = C (Cathode Ray Tubes are the same picture tubes in all TV's that aren't flat screen, as well. This is the same technology since TV's came out in the 1960's and has only changed recently from the new LCD technology)
3 = B (Notice when you touch a flat screen LCD monitor that it looks like you're pushing on water, thats the liquid in it).
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