| A | B |
|---|
| John Napier | Napier bones calculating |
| Blaise Pascal | automatic calculating machine |
| Gottfried Leibnez | invented calclus |
| Charles Xavier Thomas | made the machine arithmometer |
| Joseph Jacquard | Jacquards lume |
| Charles Babbage | first modern computer device |
| Georg Schetuz | Swedish calculating machine |
| Augusta Ada Byron | first female computer scientist |
| Herman Hollerith | automatic scences bureau |
| Thomas Watson, Jr. | IBM |
| Alan Turing | Turing machine |
| George Stibitz | digital calculator |
| John Atanasoff | electronic calculating machine |
| Dr. Howard Aiken | Invented Mark 1 computer for IBM |
| Dr. John Mauchly & Presper Eckert | Eniac |
| John Bardeen, William Shockley, & Walter Brittain | transistor radios |
| John Von Newmann | stored program concept |
| Dr. Daniel Slotnick | Illiac |
| Rober Noyce & Jack Kilby | integraded circuit |
| Alan Kay | Interfaces |
| Grace Hopper | mother of Cobol |
| Ted Hoff | Microprocessor |
| Ed Roberts | Altair |
| Donald Knuth | Text typing system |
| Steve Jobs & Steve Wozniak | started Apple computers |
| Bill Gates & Paul Allen | microsoft |
| Steve Case | co-founder of AOL |
| Lawrence Ellison | Oricle (2nd largest software company) |
