In 1897, Ferdinand Braun constructed the first cathode ray  oscilloscope, and Boris Rosing and Alan Campbell-Swinton suggested  the use of the oscilloscope for data transmission.
In 1897, Ferdinand Braun constructed the first cathode ray  oscilloscope, and Boris Rosing and Alan Campbell-Swinton suggested  the use of the oscilloscope for data transmission. These  discoveries were improved by John Baird, who used the device to  mechanically scan images in 1936, and Vladimir Zworykin, who  invented the iconoscope and kinoscope in 1924 which amplified the  electron beam to distinguish between the light and dark sides of  images. FTP, this is the early history of what familiar device?
In 1897, Ferdinand Braun constructed the first cathode ray  oscilloscope, and Boris Rosing and Alan Campbell-Swinton suggested  the use of the oscilloscope for data transmission.
Television