| A | B |
|---|
| John Napier | Napier bones |
| Blaise Pascal | Auto calculating machine |
| Gottfried Leibnez | Invented Calculator |
| Charles Xavier Thomas | Arithmometer |
| Joseph Jacquard | Jacquard's loom |
| Charles Babbage | First modern computer |
| Georg Scheutz | Swedish Calculating machine |
| Augusta Ada Byron | First woman computer scientist |
| Herman Hollerith | Automatic census beuro |
| Thomas Watson, Jr. | first president of IBM |
| Alan Turing | Turing machine |
| George Stibitz | modern K (Digital Calculator) |
| John Atanasoff | Electronic Calculating machine |
| Dr. Howard Aiken | Mark 1 Computer for IBM |
| Dr. John Mauchly & Presper Eckert | Eniac |
| John Bardeen, William Shockley, & Walter Brittain | Transistors |
| John von Neumann | Stored program concept |
| Dr. Daniel Slotnick | Illiac |
| Robert Noyce & Jack Kilby | first integrated circuit |
| Alan Kay | Interface |
| Grace Hopper | Mother of Kobolt |
| Ted Hoff | Microprocessor |
| Ed Roberts | Altair (first personal computer) |
| Donald Knuth | Text type settings system |
| Steve Jobs & Steve Wozniak | Started Apple Computers |
| Bill Gates & Paul Allen | Microsoft |
| Steve Case | AOL |
| Lawerence Ellison | Oracle |
