| A | B |
|---|
| John Napier | Napier bones |
| Blaise Pascal | automatic calculating machine |
| Gottfried Leibnez | calculus |
| Charles Xavier Thomas | arithmometer |
| Joseph Jacquard | "loom" |
| charles babbage | first modern computer |
| georg sheutz | swedish calculating machine |
| augusta ada byron | first female computer scientist |
| herman hollerith | automatic census taker |
| thomas watson, jr | president of IBM |
| alan turing | turing machine |
| George Stibits | digital calculator |
| john atanasoff | electronic digital computer |
| dr howard aiken | mark1 computer for IBM |
| dr john mauchly & persper eckert | designed eniac |
| John bardeen william schockley &walter brittain | first transitor |
| John von Neuman | saver |
| dr daniel slotnick | illiac4 |
| robert noyce and jack kilby | first integrated circuit |
| alan kay | graphical user (interface) |
| grace hopper | cobal |
| ted hoff | microprocessor |
| ed roberts | altair |
| donald knuth | text |
| steve jobs & steve wozniak | apple computer |
| bill gates and paul allen | microsoft |
| steve case | aol |
| lawrence ellison | oracle |
