Inventor | Invention/Date |
Blaise Pascal ( 1623 - 1662) | A calculating device called " Pascaline " in 1642 |
Gottfried Wilhelm von Leibniz ( 1646 - 1716) | Invented the Stepped Reckoner in 1670 |
Charles Babbage ( 1792 - 1871 ) | Analytical engine / 1821 & Difference engine / 1856 |
Herman Hollerith ( 1860 - 1929 ) | Invented the Tabulating machine in 1890 |
John Atanasoff ( 1903 - 1995 )
Clifford Berry ( 1918 - 1963 ) | Invented Atanasoff-Berry Computer (ABC) 1939 |
Howard H. Aiken ( 1900 - 1973) " Mark 1 " | Harvard Mark I, forerunner of the modern electronic digital computer. ( unspecified ) |
John Mauchly ( 1907 - 1980 )
J. Presper Eckert | Invented ENIAC ( Electronic Numerical Integration And Calculator ) in 1946 |
Alan Turning ( 1912 - 1957 ) | Invented a machine in the late 30's and 40's , it is called the Turning Machine . The " Enigma " |
Jon Von Nuemann ( 1903 - 1957 ) | Could divide 8 digit numbers in his mind at the age of 6. Built the EDVAC ( Electronic Discrete Variable Automatic Computer |
William Shockley ( | |