Introduced data structuring, and file handling was built into the language. Attempt to minimise the importance of programmers. Classes, data abstraction, object-oriented . Computers becoming less expensive. Computing as a science, starts to mature.
Personal computers arrive.
Languages for AI - LISP, Prolog. Languages for Logic programming - Prolog, Mercury. Languages for parallel machines. Functional programming languages - Miranda, ML, Haskell. Languages for easy GUI development.