which actress and inventor pioneered the technology responsible for all modern wireless communication systems, including wifi, gps, and bluetooth?

The actress and inventor who pioneered the technology responsible for modern wireless communication systems, including WiFi, GPS, and Bluetooth, is Hedy Lamarr. She developed, along with composer George Antheil, a frequency-hopping spread spectrum technology during World War II to make radio-guided torpedoes secure against jamming. This invention became the foundation of the spread spectrum technology used in all these wireless systems today.