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invention of electricity
William Greener was one of the inventors -
invention of vacuum tubes
John Ambrose Fleming invented the vacuum tube -
Period: to
1 st generation
vacuum tubes
huges -
Period: to
2 nd generation
much smoller faster cheaper. made by transitors -
Period: to
3rd generation
circuits smoller, faster cheaper less electricity fever mistayes -
ivention of microprocessors
the creator is Federico Faggin -
Period: to
4th generation
microprocesors (smoll silicos chip arith thounsonds of circuits) smoller portable cheaper lesselectricity less heat -
Period: to
5th generation
scientist one developing they cant think on their own
