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500
Abacus
The Egyptians created the Abacus 500=500bc -
Pascaline Was Invented
In 1642 Blaise Pascal invente the Pascaline, the first ever calculator -
Lebniz Calculator Was Invented
Gottfried Wilhelm invented the Lebniz calculator -
Difference Engine Was Invented
Charles Babbage invented the Difference Engine -
Vacum Tube
The first generation computers used these -
Transistors
The second generation computer was invented -
Integrated Circuit
The Integrated Circuit was invented, it is used in almost all wlwctronics today