| A | B |
|---|
| Charles Babbage | Analytic Engine |
| Ada Byron Lovelace | First computer programmer |
| Henry Hollerith | Invented the "Tabulating Machine" for the US Census Bureau |
| Jack Kilby | Discovered what integrated circuits could do |
| Gordan Moore | Made prediction that the number of transistors on a computer chip would double about every two years |
| Steve Jobs | Co-founder of Apple Computer |
| Steve Wozniak | Co-founder of Apple Computer |
| Bill Gates | Created Microsoft Corporation |
| (Marcia) Ted Hoff | Developed the first microprocessor |
| Grace Hopper | Designed the computer language COBOL - first to use the word "bug" to describe a computer problem |
| Howard Aiken | Helped designe the Mark I computer with Grace Hopper |
| Blaise Pascal | Invented a mechanical adding and subtracting machine |
| Robert Noyce | Co-founder of Intel |
| vacuum tube | Glass tubes used in early computers |
| transistor | Functions like a vacuum tube but much smaller, used less electricity and generated little heat |
