C is a powerful general-purpose programming language. It can be used to develop software like operating systems, databases, compilers, and so on. C programming is an excellent language to learn to program
The C Language is developed by Dennis Ritchie for creating system applications that directly interact with the hardware devices such as drivers, kernels, etc
- Mother language
- System programming language
- Procedure-oriented programming language
- Structured programming language
- Mid-level programming language
C Keywords and Identifiers
A character set is a set of alphabets, letters and some special characters that are valid in C language.
Uppercase: A B C …………………………….. X Y Z Lowercase: a b c ……………………………….. x y z
C accepts both lowercase and uppercase alphabets as variables and functions.
6. 0 1 2 3 4 5 6 7 8 9
|Special Characters in C Programming|
Keywords are predefined, reserved words used in programming that have special meanings to the compiler. Keywords are part of the syntax and they cannot be used as an identifier. For example:
As C is a case sensitive language, all keywords must be written in lowercase. Here is a list of all keywords allowed in ANSI C.
All these keywords, their syntax, and application will be discussed in their respective topics. However, if you want a brief overview of these keywords without going further,
Identifier refers to name given to entities such as variables, functions, structures etc.
Identifiers must be unique. They are created to give a unique name to an entity to identify it during the execution of the program. For example:
double account Balance; Here, money and account Balance are identifiers