The book emphasis is placed on scientific problems, and choosing Pascal as a working language is due to its easy to learn as first programming language and its clarity in coding. What is more, Pascal, invented by Nikolaus Wirth in the early 70s is widely used and is rapidly getting on being the first language spoken of in introductory computer science/systems courses because it is more attractive than other languages, say BASIC or FORTRAN, being more clearer, supplying a better discipline for structured programming, broad flexibility for data types and because of its recursive nature.
by Harley Flanders
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