This is the first of a long series of posts giving an informal introduction to computational complexity.
Computational complexity theorists try to determine which problem are efficiently solvable on a computer. This sentence already leads to many questions: What is a problem? What is efficiently solvable? Let us first start off with a truly basic question, what is a computer?
Great stuff for computer science students—I wish I’d had this 6 months ago when complexity came up in my programming course.