Computer's History By puky Period: 3000 BCE to 3000 BCE Abacus Period: 1590 to 1617 John Napier Period: 1623 to 1623 Wilhelm Schickard Period: 1624 to 1624 William Oughtred Period: 1642 to 1642 Blaise Pascal Period: 1666 to 1666 Samuel Morland Period: 1694 to 1694 Gottfried Wilhelm Von leibniz Period: 1790 to 1790 Joseph Marie Jacquard Period: 1812 to 1812 Charles Babbage Period: 1843 to 1843 Ada Lovelace Period: 1879 to 1879 Herman Hollerit Period: 1906 to 1906 Lee De Forest Period: 1938 to 1938 Konrad Zuze Period: 1939 to 1939 John V. Atanasoff Period: 1940 to 1956 First Generation Period: 1956 to 1963 Second Generation Period: 1964 to 1971 Third Generation Period: 1972 to 2010 Fourth Generation 1972 – 2010 Period: 2010 to 2018 Fifth Generation