The great insights of computer science
There are 3 "Great Insights of Computer Science", who described these?
Computer science
The philosopher of computing Bill Rapaport noted three "Great Insights of Computer Science"   Leibniz's, Boole's, Alan Turing's, Shannon's, & Morse's insight: There are only 2 objects that a computer has to deal with in order to represent "anything" All the information about any computable problem can be represented using only 0 & 1 (or any other bistable pair that can flip-flop between two easily distinguishable states,such as "on"/"off", "magnetized/de-magnetized", "high-voltage/low-voltage", etc. ).  Alan Turing's insight: There are only 5 actions that a computer has to perform in order to do "anything"  Every algorithm can be expressed in a language for a computer consisting of only 5 basic instructions: : * move left one location : * move right one location : * read symbol at current location : * print 0 at current location : * print 1 at current location  Boehm and Jacopini's insight: There are only 3 ways of combining these actions (into more complex ones) that are needed in order for a computer to do "anything" Only 3 rules are needed to combine any set of basic instructions into more complex ones:  sequence: : first do this; then do that  selection : : IF such-&-such is the case,  : THEN do this  : ELSE do that  repetition: : WHILE such & such is the case DO this Note that the 3 rules of Boehm's and Jacopini's insight can be further simplified with the use of goto (which means it's more elementary than structured programming.)