| A | B |
|---|
| John Napier | Napier bones |
| Blaise Pascal | Atomatic calculating machine |
| Gottfried Leibnez | invented calculus |
| Charles Xavier Thomas | Invented arithmometer |
| Joseph Jacquard | Jacquard's loom |
| Charles Babbage | 1st modern computing device |
| Georg Scheutz | sweedish calculating machine |
| Augusta Ada Bryon | 1st female computer scientist |
| Herman Hollerith | automatic census bearu |
| Thomas Watson, Jr. | president of IBM |
| Alan Turing | invented Turing machine |
| George Stibitz | made digital calculator |
| John Atanssoff | invented electronic calculating machine |
| Dr. Howard Aiken | made Mark 1 computer for IBM |
| Dr. John Mauchly and Presper Eckert | invented Eniac computer |
| John Bardeen, William Schockley, and Walter Brittain | invented transister |
| John von Neuman | invented stored program concept |
| Dr. Daniel Slotnick | invented illiac computer |
| Robert Noyce and Jack Kilby | invented first integrated circuit |
| Alan Kay | invented the interface |
| Grace Hopper | mother of Cobal |
| Ted Hoff | Invented microprocessor |
| Ed Roberts | Invented Altair |
| Donald Knuth | invented text type setting system |
| Steve Jobs and Steve Wozniak | started Apple computers |
| Bill Gates and Paul Allen | founder of microsoft |
| Steve Case | cofounder of AOL |
| Lawrence Ellison | confouder of Oracle |
