Hedy Lamarr
Hedy Lamarr invented frequency hopping to minimize jamming of radio signals.
Hedy Lamarr - History.com
Hedy Lamarr - IMDB
Ada Lovelace
Ada Lovelace worked with Charles Babbage's analytical machine, becoming the first computer programmer.
Ada Lovelace - Britannica
Ada Lovelace - Thoughtco
Alan Turing
Alan Turing developed the first modern computers, decoded the encryption of German Enigma machines in WW2, and formed the basis for artificial intelligence.
Alan Turing - Stanford
Alan Turing - National Geographic