UNIT 3 CONCEPT IN PROGRAMMING LANGUAGE

 3.0 INTRODUCTION 

A Programming Language is used to design and describe a set of instructions and computations to be executed by a computer. To do programming, one should have knowledge of i) a particular programming language ii) algorithm to solve the problem. An algorithm is finite number of steps, which perform some computation on the input and produce the desired output in a finite amount of time. Once an algorithm is chosen, the next step for a solution using a computer would be to write a program using the algorithm. A program is defined as a collection of Statements or Sentences written in a particular programming language. Further, to obtain the output from a Program, it is required to be compiled or interpreted so that the computer can understand it. 

3.1 OBJECTIVES 

After going through this unit, you will be able to : 

  • need for Programming; 
  • flow chart and Example Program; 
  • elements of Programming Languages such as variable, constant, data type, arrays and expression etc.;
  •  describe looping and decisions; and 
  • differentiate between Assembler, Compiler and Interpreter.

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