| A | B |
|---|
| John Napier | Bones |
| Blaise Pascal | Automatic Calculating machine |
| Gottfried Leibnez | Caculas |
| Charles Xavier Thomas | Arithmonter |
| Joseph Jacquard | Jacquard lume |
| Charles Babbage | 1st modem computing device |
| George Stibitz | Sweadish Calculating machine |
| Augusta Ada Byron | 1st female computer Scientist |
| Herman Hollerith | Automatic Census Bearu |
| Thomas Watson Jr. | IBM |
| Alan Turning | Turing Machine |
| George Stibitz | Modem K |
| John Atanasoff | 1st electronic computer |
| Dr. Howard Aiken | mark 1 computer for IBM |
| Dr. John Mauchly and Presper Eckert | Eniac |
| John Bardeen William Shockley and Wlater Brittian | transisters |
| John von Neumann | stored program concept |
| Dr. Daniel Slotnick | illiac |
| Robert Noyce and Jack Kilby | INtegrates Circut |
| Alan Kay | interface |
