| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | Automatic Calculating machine |
| Gottfried Leibnez | calculus |
| Charles Xavier Thomas | Arithmometer |
| Joseph Jacquard | Jacquard's Loom |
| Charles Babbage | first modern computing device |
| george Scheutz | Sweedish Calculating Machine |
| Augusta Ada Byron | first female computer scienctist |
| Herman Hollerith | Automatic Cencus Bureau |
| Thomas Watson, Jr. | Pres. of IMB |
| Alan Turning | Turning Machine |
| George Stibitz | Digital Calculator |
| John Atanasoff | first special purpose digital computer |
| Dr. Howard Aiken | Mark 1 computer |
| Dr. John Mauchly & Presper Eckert | designed Eniac |
| John Bardeen, William Shockley & Walter Brittain | first transistor |
| John von Neuman | stored program concept |
| Dr. Daniel Slotnick | Illiac 4 |
| Robert Noyce & Jack Kilby | first integrated circuit |
| Alan Kay | interface |
| Grace Hoppper | cobol |
| Ted Hoff | microprocessor |
| Ed Roberts | Altair |
| Donald Knuth | Tex |
| Steve Jobs & Steve Wozniak | Apple |
| Bill Gates & Paul Allen | Microsoft |
| Steve Case | CEO of AOL |
| Lawerence Ellison | Oracle |
