What is another word for cathode-ray tubes?
Pronunciation: [kˈaθə͡ʊdɹˈe͡ɪ tjˈuːbz] (IPA) 
Cathode-ray tubes are an outdated technology that was once commonly used in televisions and computer monitors. These bulky, glass tubes worked by projecting a beam of electrons onto a phosphorescent screen, emitting light and producing the images that we see. While cathode-ray tubes have been replaced by more advanced technologies like LED and LCD screens, the need for synonyms remains. Some alternative terms to refer to cathode-ray tubes include CRTs, electron guns, vacuum tubes, and picture tubes. Each of these terms captures a different aspect of the technology, whether it's the shape or function of the tube, the way it produces images, or the fact that it operates in a vacuum.
