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Simula 67

Norwegian authors Kristen Nygaard and Ole-Johan Dahl wrote Simula during 1964 - 1967. Simula was designed exclusively for system simulation and was first implemented in 1964 on a UNIVAC 1107 computer. By 1967, Simula67 was introduced to the public.

Basic Features:

Simula is applied to almost all kinds of data processing. It is an object-oriented language which uses block structures and control statements.

Simula is an improvement over its predecessor, ALGOL 60, in that it provides sub-programs which are tested individually. This is an improvement over ALGOL60 and Fortran's rigid hierarchical relationships. This is a great boost for prototyping and top-down development. Both Simula and Simula67 make use of co-routines.

Additional Interesting Features:

Simula67 is still in use and there are active newsgroups discussing the pro's and con's of the language. One popular debate in the newsgroups is whether Simula or C++ is more innovative. Some people believe that C++ stole most of its concepts from Simula. In fact, Simula is a true object-oriented language and its most important aspect is the class concept. Simula introduced concepts such as object-orientation, classes and inheritance. These concepts are now 30 years old!

WWW Site:

Norwegian Computer Corporation (NCC) is responsible for releasing Simula and continues to maintain it. The last definition of The Simula Standard was adopted in 1986. The Simula Standards Group maintains the definition. This group can be found at the web site.


The benefits of Simula, C++ and other Object-Oriented languages are compared. Simula appears to be the grandfather of Object-Orientation.

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Old News ;-)

1-1-1984 A study of the simula 67 language. Andrew Joseph Tanhauser

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Last modified: March, 12, 2019