PROBLEM SOLVING USING C FREE CERTIFICATION COURSES
Programming is the process of converting a solution (algorithm or flowchart) to a set of instructions. A computer language is used to write the set of instructions (Computer Program).
By 1960 a horde of computer languages had come into existence almost each for a specific purpose. At this stage people started thinking that instead of learning so many languages, each for a different purpose, why not use only one language which can program all the possible applications. Therefore, an international committee developed a language called ALGOL 60. Since it was too abstract and too general, a new language called Combined Programming Language (CPL) was developed at Cambridge University. However CPL turned out to be very hard to learn and difficult to implement. Basic Combined Programming Language (BCPL) was developed to solve the above problem. But unfortunately it turned to be too less powerful and too specific. Around this time a language called B was written for Unix by Ken Thompson at AT&T's Bell Labs, as further simplification of CPL. Dennis M Ritchie (Circa 1972) inherited the features of B and BCPL, added some of his own and developed C.
C is a general Computer Programming Language. It was originally created for the specific purpose of rewriting Unix operating System. The intention of these programmers was to port Unix onto other dissimilar machines. What was required was a language that would permit Assembly like operations such as Bit manipulations, and at the same time be executable on different Computers. Hence a new language was called for and C was born. C++, an object oriented extension was created by Bjarne Stroustrup, also at Bell labs.
To solve a problem using a computer program, the three most important functions required are input, output and processing of data. However, C does not contain any built in input or output statements. Further C carries out all its input and output operations through library functions like printf() and scanf(). Thus the standard input/output library functions are included in the header file called stdio.h. Therefore every C program using input/output functions must begin with the statement.
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