Introduction to C Programming History and Function

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Questions and Answers

Explain the purpose of the definition section in C programming?

The definition section defines all symbolic constants using the # define directive.

What is the purpose of the global declaration section in C programming?

The global declaration section declares global variables and all user-defined functions, which are used in more than one function.

What is the primary requirement for every C program?

Every C program must have one main function.

What are the two parts of the MAIN() FUNCTION SECTION in C programming?

The MAIN() FUNCTION SECTION contains the Declaration part, which declares all variables used in the executable part, and the Executable part, which contains at least one statement. Signup and view all the answers

What does the subprogram section contain in a multifunction C program?

The subprogram section contains subprograms if the program is a multifunction program. Signup and view all the answers

Match the following C programming sections with their descriptions:

Definition section = Defines symbolic constants using #define directive Global declaration section = Declares global variables and user-defined functions Main() function section = Must contain at least one statement in the executable part Sub program section = Contains code for multifunction programs Signup and view all the answers

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Study Notes

History of Programming Languages

1957: FORTRAN (FURMULA TRANSLATION) used for mathematical and scientific calculations
1960: COBOL (COMMON BUSINESS ORIENTED LANGUAGE) used for business applications or software
1967: BCPL (BASIC COMBINED PROGRAMMING LANGUAGE) used as a general-purpose language
1970: B language developed
1972: C language developed, a particular task-oriented language

Structure of C Programming

Document Section: consists of comment lines giving program name, author, and details
Link Section: provides instructions to the compiler to link functions from the system library using #Include directive
Definition Section: global declarations
Global Declaration Section: declaration of global variables
Main() Function Section: declaration and executable parts
Subprogram Section: functions (Function 1, Function 2, ..., Function n)