•Operator is a symbol to process values in result for a new value

•Operand is part which specifies what data is to be manipulated or operated on

Assignment Operator ( = )

Arithmetic Operator

• + Addition
• - Subtraction
• * Multiply
• / Division
• % Modulo
• ++ Increment
• -- Decrement
• () Priority

Relational Operator

• == Equality
• != Not Equal
• < Less Than
• > Greater Than
• <= Less or equal than
• >= Greater or equal than
• ?: Conditional assignment

Logical Operator

• && AND
• || OR
• ! NOT

Bitwise Operator 

• & AND
• | OR
• ^ XOR
• ~ Complement
• >> Shift Right
• << Shift Left

Pointer

• & Address of
• * Value of

Standard Output operation 

• printf();
• putchar();
• putch();
• puts();

Standard Input operation

• gets();
• getche();
• getch(); 
• getchar();
• scanf();