| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | Automatic calculating machine |
| Gottfried Leibnez | calculus |
| Charles Xavier Thomas | Arithmonoter |
| Joseph Jacquard | Jacquard loom |
| Charles Babbage | 1st modern computing device |
| Georg Scheutz | Swedish calculating machine |
| Augusta Ada Byron | 1st female computer scientist |
| Herman Hollerith | Automatic census Bureau |
| Thomas Watson, Jr. | w/Hollerith started co. that became IBM |
| Alan Turning | turning machine |
| Konrad Zuse | Z1 Computer |
| George Stibitz | model K digital calculator |
| John Atanasoff | Electronic calculating Machine |
| Dr. Howard Aiken | Mark I computer for IBM |
| Dr. John Mauchly Presper Eckert | Eniac |
| John Bardeen William Shockley Walter Brittain | Transistors |
| John von Neumann | stored program concept D. vacuum tubes |
| Dr Daniel Slotnick | Illiac IV computer 1st supercomputer |
| Robert Noyce Jack Kilby | 1st intrgrated circuit |
| Alan Kay | interface for flex computer |
| Grace hopper | mother of cobol |
| Ted Hoff | microprocessor |
| Ed Roberts | Altair computer |
| Donald Knuth | TeX typesetting system |
| Steve Jobs Steve Wozniak | Apple |
| Bill Gates Paul Allen | Microsoft |
| Steve Case | AOL |
| Lawrence Ellison | Oracle |
