What is the relationship between K&R C and ANSI C?
K&R C refers to Kerninghan and Ritchie C. Brian Kerninghan and Dennis Ritchie were the two men at Bell Labs that invented the C language in the early 1970 s. At the time it was created so that UNIX could be written in something other than assembly code. UNIX is typically written 90% in C and 10% in assembly code for the kernel which has to be extremely fast. Their primary focus seems to have been to create an extremely fast, small, and efficient programming language. They succeeded admirably. ANSI C is a newer version of C which was designed to overcome some of the shortcomings of K&R C and also allow the compiler to do more rigorous type checking of your code.