| First Name | Last Name | Date of Birth | Accomplishment |
| Charles | Babbage | 12/26/1791 |
Originated the concept of a programmable computer, invented the first mechanical computer. |
| Ada | Lovelace | 12/10/1815 |
First computer programmer. Wrote an algorithm for Babbage's mechanical computer. |
| Alan | Turing | 6/23/1912 |
Invented the Turing Machine, a hypothetical device that's a model of a general purpose computer. |
| Grace | Hopper | 12/9/1906 |
Invented the first compiler for a computer programming language, popularized the term "debugging" for fixing computer glitches. |