Nur fatmawati
16611047
Objeck-oriented proggramming : somehistory , and challenges for the next fifty years.
Ole-Johan
Dahl and Kristen Nygaard created the Simula languages in the
1960s at the Norwegian Computing Center, they introduced a new way of modeling
and programming complex tasks. Object-oriented programming is now dominant in
system development, and is everywhere part of the computer science curricula,
as are languages built on OOP concepts, such as Smalltalk, C++, Eiffel and
Java. Object-oriented programming (OOP) is aprogramming language model organized aroundobjects rather than
"actions" and data rather than logic. A program has been viewed as a logical procedure that takes
input data, processes it, and produces output data. And Cost estimation models are mathematical algorithms or
parametric equations used to estimate thecosts of a
product or project. The results of the models are
typically necessary to obtain approval to proceed, and are factored into
business plans, budgets, and other financial planning and tracking mechanisms.
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