Evolution Of Object Oriented Technology

Many programming languages, office information systems, system simulation and artificial intelligence have adopted object-oriented technology. It is an assumption that learning specific development method or a set of tools. HISTORY OF SIMULA AND SMALLTALK Simula: The theory of objects in the Simula 67 was introduced by the discrete event simulation which was the outcome of the formal programming language, designed in 1960’s, created by Kristen Niggard has and Ole-Johan Dahl of Norwegian Computing Center (NCC) in Oslo. Simula 67 has been influenced by the C.A.R. and SIMSCRIPT. “Tony” Hoare’s proposed the Record classes. As part of the explicit programming model the Classes and objects or their instances were presented in Simula. The Automatic Garbage collection concept that was created earlier for the functional programming language Lisp was used by Simula. For the study and improvement of ship movements and the contents on them via cargo ports, Simula was utilized for creating the physical model of ships and the content that they carried. Many languages were influenced by Simula 67 such as derivatives of LISP (CLOS), Smalltalk, Pascal, and C++ Object. The Smalltalk language: Smalltalk was developed at Xerox PARC by Alan Kay and others in the 1970s. The term object-oriented programming was introduced to represent the extensive use of objects