| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | Automatic Calculating Machine |
| Gottfried Leibnez | Calculus |
| Charles Xavier Thomas | Arithmometer |
| Joseph Jacquard | Jacquard's Loom |
| Charles Babbage | Modern Computer Device |
| Georg Scheutz | Swedish Calculating Machine |
| Augusta Ada Byron | Female Computer Scientist |
| Herman Hollerith | tabulating machine (census Bureau) |
| Thomas Watson Jr. | Started IBM |
| Alan Turing | Turing Machine |
| George Stibitz | Swiss Calculating Machine |
| John Atanasoff | Electronic Digital Computer |
| Dr. Howard Aiken | Made Mark I Computer |
| Dr. John Mauchly & Presper Eckert | Eniac |
| John Bardeen William Shockley & Walter Britain | Transistors |
| John Von Neumann | Storing Programs |
| Dr. Daniel Slotnick | Iliac IV 1st super Computer |
| Robert Noyce & Jack Kilby | Integrated Computer Circuits |
| Alan Kay | Interface |
| Grace Hopper | Mother of Cobol |
| Ted Hoff | Microprocessor |
| Ed Roberts | 1st Personal Computer Altair |
| Donald Knuth | Text-Type setting |
| Steve Jobs & Steve wozniak | Founded Apple |
| Bill Gates & Paul Allen | Founded Microsoft |
| Steve Case | CEO of AOL |
| Lawrence Ellison | Oracle |
