| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | Automatic calculating machine |
| Gottfried Leibnez | Invented calculus |
| Charles Babbage | 1st modern computing device |
| Georg Scheutz | Sweedish Calculator |
| Augusta Ada Byron | 1st computer scientist |
| Herman Hollerith | Automatic census bereau |
| Thomas Watson, Jr. | IBM |
| Alan Turing | Touring machine |
| George Stibitz | Digital calculator |
| John Atanasoff | Electronic calculator |
| Dr. Howared Aiken | Mark 1Computer for IBM |
| Dr. John Mauchly and Presper Eckert | Eniac |
| John Bardeen, William Shockley, Walter Brittian | Transitters |
| John Von Neumann | Stored programming conduct |
| Dr. Daniel Slotnick | Ioliac |
| Robert Noyce and Jack Kilby | Integrated circuit |
| Alan Kay | Smalltalk programming |
| Grace Hopper | Mother of Colbalt |
| Ted Hoff | Microprocessor |
| Ed roberts | Altair/1st personal computer |
| Donald Knuth | Text setting system |
| Steve Jobs and Steve Wozniak | Apple |
| Bill Gates and Paul Allen | Microsoft |
| Steve Case | AOL |
| Lawrence Ellison | Orakel |
| Charles Xavier | Arithmometer |
| Joseph Jacquard | Jacquard Loom |
