The ancient Greek device, the Antikythera mechanism (circa 200 – 100 BC), is generally considered to be the world’s oldest known mechanical analog computer.
Alan Turing can be considered “the father of computer science and AI.” Turing made major contributions to computing, codebreaking, and even helped the Allies win WWII.
Venture capital, which was just emerging in the late 50’s, helped create companies like Intel, which in turn created Silicon Valley and startup culture.
British mathematician Ada Lovelace can be considered the mother of computer programing, as she wrote the first complex algorithm meant to be carried out by a machine. However, it is a myth that Ada Lovelace wrote “the first computer program” or was “the first computer programmer”, that title belongs to Charles Babbage.