| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | Automatic Calculating Machine |
| Gottfried Leibnez | Calculus |
| Charles Xavier Thomas | Arithmometer |
| Joeseph Jacquard | Jacquard's loom |
| Charles Babbage | modern computer device |
| Georg Scheutz | Sweedish calculating machine |
| Augusta Ada Byron | 1st female scientist |
| Herman Hollerinth | tabulating machine for Census Bureau |
| Thomas Watson Jr. | Started IBM |
| Alan Turing | Turing machine |
| George Stibitz | Swiss calculating machine |
| John Atansoff | electronic digital computer |
| Dr. Howard Aiken | Mark I computer |
| Dr. John Mauchy and Presper Eckert | Eniac |
| John Bardeen, William Shockley and Walter Brittain | transitors |
| John von Neumann | storing programs |
| Dr. Daniel Slotnick | Illiac IV 1st supercomputer |
| Robert Noyce and Jack Kilby | 1st integrated computer systems |
| Alan Kay | interface |
| Grace Hopper | mother of Cobol |
| Ted Hoff | microprocessor |
| Ed Roberts | 1st personal computer |
| Donald Knuth | Text-typesetting |
| Steve Jobs and Steve Wosniac | founded Apple |
| Bill Gates and Paul Allen | founded Microsoft |
| Steve Case | AOL |
| Lawrence Ellison | Oracle |
