In the beginning, C was used for developing system applications including:

• Database systems
• Language interpreters
• Compilers and assemblers
• Operating systems

Getting Started

To start learning C programming, you only have to install the C compiler in your system. Nowadays C and C++ both compilers come as a single integrated package that serves the purpose of C and C++ both program development.

The best way to achieve an editor and compiler in one is Codeblocks. If you have installed Codeblocks, we can start writing code.

Tokens

In C programs, each word and punctuation is referred to as a “token”. C Tokens are the smallest building block or smallest unit of a C program.

Identifiers

Identifiers are names given to different entities such as constants, variables, structures, functions, etc.

int price;  
double totalprice;

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