| A | B |
|---|
| John Napier | Napier Bones |
| Blaise Pascal | automatic calculating machine |
| Gottfried Liebnez | Calculus |
| Charles Xavier Thomas | arithrometer |
| Joseph Jacquard | Loom |
| Charles Babbage | 1 modern computing device |
| Georg Scheutz | Sweedish Calculating Machine |
| Agusta Ada Byron | 1 female computer sientist |
| Herman Hollerith | automatic census buro |
| Thomas Watson, Jr. | President of IBM |
| Alan Turing | Turing Machine |
| George Stibitz | Digital Calculator |
| John Atanosoff | 1 digital computer |
| Dr. Howard Aiken | Perfected the mark computer |
| Dr. John Mauchly and Presper Eckert | Eniac |
| Jong Bardeen, William Shockley, and Walter Brittain | Invended Transistor |
| John von Neumann | IAS-stored program concepts |
| Dr. Daniel Slotnick | illiac 4 |
| Robert Noyce and Jack Killby | microchip |
| Alan Kay | Small talk-computer language |
| Grace Hopper | COBOL |
| Ted Hoff | microprocesser |
| Ed Roberts | Altar-first person computer |
| Danald Knuth | text type setting system |
| Steve Jobs and Steve Wozniac | 1 pc |
| Bill Gates and Pauls Allen | Microsoft |
| Steve Case | AOL |
| Lawrence Ellison | Database Software-Oracle |
