| A | B |
|---|
| John Napier | Napier bones |
| Blaise Pascal | automatic calculating machines |
| Gottfried Leibnez | calculus |
| Charles Xavier Thomas | arithmometer |
| Joseph Jacquard | Jacquards loom |
| Charles Babbage | 1st modern computing device |
| Georg Scheutz | Swedish caluclating machine |
| Augusta Ada Byron | 1st female computer scientist |
| Herman Hollerith | automatic census bureau |
| Thomas Watson Jr. | Pres. of IBM |
| Alan Turing | Turing machine |
| George Stibitz | digital calculater |
| John Atanasoff | 1st specialized purpose electronic digital computer |
| Dr. Howard Aiken | Mark 1 computer for IBM |
| Dr. John Mauchly and Presper Eckert | Eniac |
| John Bardeen, William Shockley, and Walter Brittain | 1st transistor |
| John von Neumann | stored program concept |
| Dr. Daniel Slotnick | Illiac |
| Robert Noyce and Jack Kilby | 1st inegrated circuit |
| Alan Kay | Interface |
| Grace Hopper | Cobol |
| Ted Hoff | invented microprocessor |
| Ed Roberts | built 1st personal computer |
| Donald Knuth | Tex type setting system |
| Steve Jobs and Steve Wozniak | invented Apple computers |
| Bill Gates and Paul Allen | invented microsoft |
| Steve Case | AOL |
| Lawrence Ellison | Oracle |
