| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | Automating Calulation Machine |
| Gottfried Leibnez | Calculus |
| Charles Xavier Thomas | Arithometer |
| Joseph Jacquard | Jacquards Lume |
| Charles Babbage | 1st Modern Computing Device |
| Georg Scheutz | Swedish Calculating Machine |
| Augusta Ada Byron | 1st Female Computer-Scientist |
| Herman Hollerith | Census Machine |
| Thomas Watson Jr. | Started IBM |
| Alan Turing | Turing Machine |
| George Stibitz | Swiss Calculating Machine |
| John Atanasoff | 1st Electronic Digital Computer |
| Dr. Howard Aiken | Mark 1 Computer |
| Dr. John Mauchly & Presper Eckert | ENIAC |
| John Bardeen, William Shockley & Walter Brittain | Transistors |
| John von Neumann | Idea of Stored Computers |
| Dr. Daniel Slotnick | 1st Super Computer |
| Robert Noyce and Jack Kilby | 1st Intergrated Circuits |
| Alan Kay | Interface |
| Grace Hopper | Mother of COBOL |
| Ted Hoff | Microprocessor |
| Ed Roberts | 1st Personal Computer -Altair |
| Donald Knuth | Tex Type Setting System |
| Steve Jobs and Wozniak | Founded Apple |
| Bill Gates and Paul Allen | founded Microsoft |
| Steve Case | AOL |
| Lawrence Ellison | ORACLE |
