Introduction to C
⏱ Estimated reading time: 1 min
Introduction to C
What is C?
C is a general-purpose, procedural programming language developed by Dennis Ritchie in 1972 at Bell Laboratories. It is widely used for system-level programming.
Characteristics of C
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Structured programming language
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Fast and efficient
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Portable
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Supports low-level memory access
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Rich set of operators
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Modular through functions
Advantages of C
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Easy to learn
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High performance
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Close to hardware
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Basis for many modern languages
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Widely supported compilers
Basic Structure of a C Program
Explanation of Program
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#include: Includes standard input/output functions -
main(): Entry point of the program -
printf(): Displays output -
return 0;: Ends program execution
Tokens in C
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Keywords:
int,return,if,while -
Identifiers: Variable and function names
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Constants: Fixed values such as
10,5.5 -
Operators:
+,-,*,/ -
Special Symbols:
{ } ( ) ;
Data Types in C
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int– Integer values -
float– Decimal values -
double– Double precision values -
char– Single character
Applications of C
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Operating systems
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Embedded systems
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Compilers
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Database systems
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Game development
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