Electronic television

Electronic television captures images as electrical signals, transmits them, and reconstructs them on a display. It replaced mechanical scanning systems with electronic image pickup and display.

Cathode-ray tube: A vacuum tube that forms images by steering an electron beam across a phosphor-coated screen. Early electronic television receivers used its scanned electron beam to reproduce moving pictures.
Philo Farnsworth: An American inventor who developed an early fully electronic television system. His image dissector camera tube and 1927 transmission demonstrated an all-electronic approach.
Broadcast television: Television programming transmitted over radio frequencies for reception by many households. Electronic cameras and transmitters made simultaneous mass distribution of moving images practical.
Mechanical television: A television system that uses mechanical scanning devices to capture or reproduce images. It relied on spinning disks or similar mechanisms where electronic television used image tubes and circuits.
Iconoscope: An early electronic television camera tube that converted an optical image into an electrical signal. It made electronic capture of a scene possible for early television broadcasts.
Vladimir K. Zworykin: A Russian-American engineer whose television camera and display technologies shaped early electronic television. His work at RCA produced influential electronic camera and receiver systems.
Television broadcasting: The production and transmission of television programs to receiving audiences. It organizes electronic image and sound signals into scheduled public services.
Television: A system for transmitting moving images and sound to distant displays. Electronic television is the dominant technological form within the broader medium.
Image orthicon: A highly sensitive television camera tube that converted light images into video signals. Its sensitivity enabled clearer electronic broadcasts, especially in studio and low-light settings.
John Logie Baird: A Scottish inventor who pioneered mechanical television and demonstrated televised moving images. His mechanical system preceded, and was eventually displaced by, electronic television.

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