Christine Anderson

Programming Languages Overview

I. Different Types of PL’s A. Imperative languages: FORTRAN, ALGOL, COBOL, C, Pascal, Ada, Modula-2 Program achieves its effect by changing the value of variables through assignment stmnts. B. Functional languages: LISP, ML, LOGO State what to do, rather than how to do it. Pure Functional Language has no assignment. C. Logic languages: PROLOG Goal oriented, facts and rules used with questions. D. Object-oriented languages: Smalltalk, Eiffel (C++ is a mixture between A and D) Characterized by Inheritance, Overloading, Dynamic Binding, Message Passing