Computer Science, asked by nabuu, 1 year ago

write short notes on vacuum tube

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Answered by Anonymous

17

An electronic device that controls the flow of electrons in a vacuum. It is used as a switch, amplifier or display screen (CRT). Used as on/off switches, vacuum tubes allowed the first computers to perform digital computations.

Answered by vivekknows

11

Vacuum Tube was developed by John Fleming in the year 1904.Vacuum tube is not more than a glass tube with vacuum in it. With the help of electrodes they control the flow of electrons.They were used in early computers . After the invention of transistor vacuum tubes became obsolete .

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