:: 1930 ::
- The first transmission of an image over a bundle of fiber is sent.
:: 1934 ::
- The Communications Act of 1934 is ratified by Congress.
:: 1935 ::
- Hewlett-Packard is founded.
:: 1936 ::
- Alan Turing publishes On Computable Numbers, detailing the design of a theoretical digital computer.
- The printed circuit board is invented.
- The U.S. Naval Aircraft Radio Laboratory demonstrates the first prototype of radar.
:: 1938 ::
- German scientist Konrad Zuse builds the Z1 and Z2, his first two electromechanical universal computing machines.
- Orson Well’s War of the Worlds radio broadcast causes panic and the power of mass media is born.
- The first electrophotographic image is produced, later leading to the first Xerox machine.
- The U.S. Navy introduces the Mark I Torpedo Data Computer.
:: 1939 ::
- The first Radio Shack catalog is published.