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1. Computers are intend to improve the productivity of labour of scientists, designers, engineers, engineers, managers, and other specialists, because computer offer quick and optimal solutions. One of the main goals of using CAD/CAM is to shorten the tifhe between designing and manufacturing.
2. Computer can be divided into simple and complex devices. Simple computers such as calculators can perform addition, subtraction,.multiplication and division. As far complex computers are concerned they can do different logical operations and some of them even have artificial intelligence.
3. Thus in order to elaborate up-to-date and inexpensive programs as well as to defend them from viruses, it is important to know some programming languages. There are low-level programming languages such as a machine languages and an assembly language and high-level programming languages, for instance, FORTRAN, PASCAL, ADA, С and BASIC.