Hedy Lamarr
which machine about 200 years ago charles babbage of britain made a machine which formed the foundation for the modern electronic computers
Vladimir Zworykin's most important contribution was the invention of the iconoscope, the first practical electronic television camera tube. This invention laid the foundation for modern television technology and significantly influenced the development of television broadcasting.
Electronic music came to be after the invention of the electronic synthesizer in the 1970s.
The electronic calculator.
Electronic music started with the invention of the electronic synthesizer in the 1970s.
Vacuum tube.
cpu
John Vincent Atanasoff's invention of the Atanasoff-Berry Computer (ABC) is considered important because it was one of the first electronic digital computers, laying the foundation for modern computing technology. The ABC utilized binary digits and electronic switches to perform calculations, demonstrating the potential for electronic computing. Atanasoff's work influenced future computer designers, including the creators of the ENIAC and helped pave the way for the development of computers as we know them today.
Electronic communication
it is now electronic
Advent of electronic communication
The answer can vary. if your invention is electronic, try Maplin (UK) or RadioShack (US), and possibly eBay (WorldWide).