| A | B |
| John Napier | Napier Bones |
| Blaise Pascal | automatic cal culus machine |
| Gottfried Leibnez | calculus |
| Charles Xavier Thomas | arthimometer |
| Joseph Jacquard | Jacquard Loom |
| Charles Babbage | 1st modern computing devise |
| Georg Scheultz | Sweedish calculaing machines |
| Augusta Ada Byron | 1st female computer scientist |
| Herman Hollerith | automatic census |
| Thomas Watson Jr. | President of IBM |
| Alan Turing | turing machines |
| George Stibitz | digital calculator |
| John Atanasoff | 1st model k digital calculator |
| Dr.Howard Aiken | eletronical computer |
| Dr. John Mauchly & Presper Eckert | eriac |
| John Bardeen William Shockley | 1st transister |
| John von Neumann | storing program concept |
| Dr. Daniel Sloctnick | super computer |
| Robert Noyce & Jack Kilby | 1st inergrated curcit |
| Alan Kay | G.U.I interface |
| Grace Hopper | Gobal programing |
| Ted Hoff | micro processor |
| Ed Roberts | 1st person computer |
| Donald Knuth | TEX type setting |
| Steve Jobs & Steve Wozniak | apple computer |
| Bill Gates & Paul Allen | micro soft |
| Steve Case | A.O.L |
| Lawrence Ellison | orical |