UNIT 3 : INTRODUCTION

• C is a general purpose language 

• Like any other high level languages, c has two distinct parts : Syntax and Semantics

• Syntax of a C language specify character set, words, operators, statements, sentences and the rules

• According to these syntax rules, valid C language program can be formulated

• Semantics of C language assigns exact meaning of actions to be performed by these valid syntactic language

• A program is a set of statements, which will be executed in a sequential form

• These statement are formed using C character set, identifiers, variables, data types, constants, etc.

• In this unit, we will learn about these basic elements which are used in the C language.