A device that uses electrons to produce images on a screen?

A television (TV) is a device that uses electrons to produce images on a screen. It works by converting electrical signals into light signals, which are then projected onto a screen. The electrical signals are generated by an antenna or cable box, which receives them from a broadcast station or cable provider. The light signals are produced by a cathode ray tube (CRT), which is a type of vacuum tube that uses electrons to create a beam of light. The beam of light is then scanned across the screen, creating an image.