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Gary Kildall

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The ALGOL compiler was probably one of the nicest pieces of code to come out at that time. I spent hours trying to fix and change the compiler. Working with it so closely affected the way I think about programming and had a profound influence on my style.
--
Programmers at Work (1986)

 
Gary Kildall

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But you could do extreme programming. In fact, I had a college buddy I did pair programming with. We took a compiler writing class together and studied all that fancy stuff from the dragon book. Then of course the professor announced we would be implementing our own language, called PL/0. After thinking about it a while, we announced that we were going to do our project in BASIC. The professor looked at us like were insane. Nobody else in the class was using BASIC. And you know what? Nobody else in the class finished their compiler either. We not only finished but added I/O extensions, and called it PL 0.5. That's rapid prototyping.

 
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Regardless of whether one is dealing with assembly language or compiler language, the number of debugged lines of source code per day is about the same!

 
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