| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | automatic calculator |
| Gottfried Leibnez | invented calculas |
| Charles Xavier Thomas | arithmoniter |
| Joseph Jacquard | Jacquard Looms |
| Charles Babbage | modern computer |
| Georg Scheutz | swedish calculator machine |
| Augusta Ada Byron | 1st female computer scientist |
| Herman Hollerith | Tabulating machine |
| Thomas Watson, Jr. | started IBM |
| Alan Turing | Turing machine |
| George Stibitz | Swiss caluculating machine |
| John Atanasoff | electronic digital computer |
| Dr. Howard Aiken | Mark 1st computer |
| Dr. John Mauchly & Presper Eckert | Eniac |
| John Bardeen, Willian Shockley, & Walter Brittain | Transsitors |
| John von Neuamann | storing programs |
| Dr. Daniel Slotnick | Illiac 1st super computer |
| Robert Noyce & Jack Kilby | 1st integrated circuits |
| Alan Kay | interface |
| Grace Hopper | Cobal |
| Ted Hoff | microprocessor |
| Ed Roberts | Altair computer |
| Donald Knuth | text type computer |
| Steve Jobs & Steve Wozniak | Apple computers |
| Bill Gates & Paul Allen | Microsoft |
| Steve Case | AOL |
| Lawrence Ellison | ORACLE |
