| A | B |
|---|
| Jhon Napier | invented napier bones |
| Blaise Pascal | invented automatic calculating machine |
| Gottfried Leibnez | calculus inventer |
| Charles Xavier Thomas | arithmometer |
| Joseph Jacquard | Jacquard's loom |
| Charles Babbage | 1st modern computer device |
| George Scheutz | made swedish calculating device |
| Augusta Ada Byron | 1st female computer scientist |
| Herman Hollerith | tabulating machine |
| Thomas watson Jr. | tabulating company and ibm |
| Alan Turing | turing machine |
| George Stibitz | swiss calculating machine |
| John Atanasoff | Digital computer |
| Dr. Howard Aiken | Made marc 1 computer |
| Dr. John Mauchy & Presper Eckert | Eniec |
| John Bardeen william Shockley & Walter Brittain | transisters |
| John von Neumann | storing info in computers |
| Dr. Danel slotnick | super computer |
| Robert Noyce & Jack Kilby | intergrated circuts |
| Alan Kay | computer interface |
| Grace Hopper | Mother of cobol |
| Ted Hoff | microprocessor |
| Ed Roberts | 1st personal computer |
| Donald Knuth | text type settings systems |
| Steve Jobs & Steve Wozniak | founded apple computers |
| Bill Gates & Paul Allen | founded microsoft computers |
| Steve Case | CEO of AOL |
| Lawrence Ellison | started pc company Oracle |
