Explanation of object orienting for computer languages

This paper provides a general discussion of object-oriented computer languages. Deals with design and development of object oriented programming languages, and examines technical infrastructure for object oriented systems. Reviews the origins of object oriented languages from 1967 to 1988 in COBOL. Defines object oriented computer languages, such as "Smalltalk", class-less prototype-based languages, object oriented language derivatives, extensions of the JAVA language, and refers to the "beta" language. Refers to object-oriented methods which are based on experience, and defines a technical infrastructure, with reference to scheduling and synchronisation. Problems of object identity, referencing, aliasing and encapsulation, inheritance and modularisation. are listed. The increased use of inheritance and reusability is noted