| A | B |
|---|
| john napier | napier bones |
| blaise pascal | automatic calculating machine |
| gottfried leibenz | invented calculus |
| charles xavier thomas | created arithmometer |
| joseph jacquard | jacquards loom |
| charles babbage | 1st modern computing device |
| georg scheutz | sweedish calculating machine |
| augusta ada byron | 1st female computer scientist |
| herman hollerith | automatic census beauro |
| thomas watson jr. | persident of IBM |
| alan turning | touring machine |
| george stibitz | digital calculator |
| john atanasoff | electronic digital computer |
| dr. howard aiken | made Mark 1 for IBM |
| Presper Eckert and dr. john mauchly | eniac |
| john bardeen, william shockley, and walter brittain | transitors |
| john von neumann | stored program concept |
| dr. daniel slotnick | Illiac |
| robert noyce and jack kilby | integrated circut |
| alan kay | interface |
| grace hopper | mother of cobol |
| ted hoff | 1st microprocessor |
| ed roberts | altair |
| donald knuth | text typesetting system |
| steve jobs and steve wozniak | apple |
| bill gates and paul allen | microsoft |
| steve case | aol |
| lawrence ellison | orical |
