| A | B |
|---|
| John Napier | created Napier Bones |
| Blaise Pascal | created the first automatic calculating machine |
| Gottfried Leibnez | invented calculus |
| Charles Xavier Thomas | arithmometer |
| Joseph Jacquard | created Jacquard's lume |
| Charles Babbage | created the first modern computer device |
| Georg Scheutz | created a Sweedish calculating device (dream machine) |
| Augusta Ada Byron | the first female computer scientist |
| Herman Hollerith | created the created an automatic census beuroe |
| Thomas Watson, Jr. | president of IBM |
| Alan Turing | created the turing machine |
| George Stibitz | created the first digital computer |
| John Atanasoff | created the first electronic digital computer |
| Dr. Howard Aiken | created the mark 1 computer |
| Dr. John Mauchly & Presper Eckert | created the Eniaz computer |
| John Bardeen, William Shockley &Walter Brittain | created transiters |
| Jon Von Neumann | created the first storing unit |
| Dr. Daniel Slotick | created the Illiac computer |
| Robert Noyce & Jack Kilby | created the first integrated circut |
| Alan Kay | created interfaces |
| Grace Hopper | mother of Cobal |
| Ted Hoff | created the microprocessor |
| Ed Roberts | invented the Altair |
| Donald Knuth | created the text typing system |
| Steve Jobs &Steve Wozniak | started Apple computer |
| Bill Gates & Paul Allen | started microsoft |
| Steve Case | co-founder of AOL |
| Lawrence Ellison | created Oricle, 2nd largest software company |
