| A | B |
|---|
| John Napier | Came up with Napier Bones |
| Blaise Pascal | Invented the automatic calculation machine. |
| Gottfried Leibnez | Invented Calculus |
| Charles Xavier Thomas | Arithmomitor |
| Joseph Jacquard | Jacquard Loom |
| Charles Babbage | First modern computing device. |
| Georg Scheutz | Swedish Caculation machine. |
| Augusta Ada Byron | First female computer scientist. |
| Herman Hollerith | Tabulating machine. |
| Thomas Watson Jr | started IBM |
| Alan Turing | Turing machine |
| George Stibitz | Swiss calculation machine |
| John Atanasoff | Electronic digital computer |
| Dr. Howard Aiken | Mark 1 commputer for IBM |
| Dr John Mauchly & Presper Eckert | Dr John Mauchly & Presper Eckert |
| John Bardeen William Shockley & Walter Brittain | Transistors |
| John Von Neumann | Storage for programs. |
| Dr. Daniel Slotnick | First super computer called Illiec. |
| Robert Noyce & Jack Kilby | First integrated circuits |
| Alan Kay | Inferface |
| Grace Hopper | Mother of Cobalt |
| Ted Hoff | Microprocessor |
| Ed Roberts | Altair, first personal computer |
| Donald Knuth | Text-type setting system |
| Steve Jobs & Steve Wozniak | founded Apple |
| Bill Gates & Paul Allen | Founded Microsoft |
| Steve Case | Founded AOL |
| Lawrence Ellison | Oracle |
