| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | automatic calculating machine |
| Gottfriedd Leibnez | Calculus |
| Charles Xavier Thomas | arithmometer |
| Joseph Jacquard | Jacquard's loom |
| Charles Babbage | first moddern computing device |
| george scheutz | sweedish calculating machine |
| augusta ada byron | 1st female computer scientist |
| herman hollerith | automatic census bureau |
| thomas watson jr | president of ibm |
| alan turing | turing machine |
| george stibitz | digital calculator |
| john atanasoff | 1st special purpose electronic digital computer |
| dr howard aitken | mark 1 computer for ibm |
| dr john mauchly presper eckert | designed eniac |
| john bardeen | first transistor |
| john von nueman | stored program concept |
| dr daniel slotnick | illiac 4 super computer |
| robert noyce jack kilby | 1st integrated circuit |
| alan kay | graphical user interface |
| grace hopper | cobol |
| ted hoff | micro processor |
| ed roberts | built 1st personal computer |
| donald knuth | tex |
| steve jobs steve wozniak | started appl ecomputer |
| bill gates pual allen | started microsoft |
| steve case | aol- founder |
| lawrence ellison | oracle founder |
