– In 1855, Heinrich Geissler was awarded a gold medal by the Exposition Universelle (World Exhibition) in Paris. – While we think of CRT as display technology, it can also be used for storage.
The history of cathode ray tube can be followed back to at least 1854 when the skilled German glassblower and mechanic Johann Heinrich Wilhelm Geißler also known as Heinrich Geissler was asked to design an apparatus for evacuating a glass tube by Julius Plücker.
In essence, a cathode ray tube (CRT) is a vacuum tube that displays visuals when its phosphorescent surface is hit by electron beams and scanned by a scanning device.
At the time of its invention, the cathode ray tube was widely considered to be the most complicated and advanced piece of consumer technology ever made.