Who are some lesser known figures in computing history?

One of my favorite lesser known people in computing history is Admiral Grace Hopper. Sure, people know about her, but she doesn’t get nearly enough credit – the woman was a force to be reckoned with. She was one of the first programmers in modern history, and she left her mark and then some (although the title of “first programmer ever” goes to another great woman of science, Ada Lovelace).

Not so fun fact: women were often relegated to programming tasks at the time because it was considered a “clerical” task, akin to typing, apparently beneath the station of the men in the engineering departments and what have you.

Anyway, Admiral Hopper basically invented the concept of a compiler. That bears repeating: she invented the concept of a compiler. She also literally discovered the first computer bug, a moth stuck in a relay. What have you done lately? :stuck_out_tongue:

Who are your favorite lesser known figures in computing history? Who has been underrepresented? Who deserves more credit than they get?