Sunday 12 August 2012

Introduction to Programming



Programming is the method of writing the Program.

Software
Software is a Set of Programs. 
It is used to give the solution for the Business organization like to automate the Business Process,
providing better service to customer and helps in Decision Making Process.




Programs are created using Programming Languages,

I.  Programming Languages Types 
             Used to develop the Programs

1. LLL ( Low Level Language ) : 
           The characters such as 0, 1  used to write the program.
           Computer can easily understand.

2. ALL ( Assembly  Level Language ) : 
            The characters such as 0, 1 and mnemonic codes ( such as ADD, SUB, MUL, DIV)  are used to write the program.
          Computer can not understand mnemonic codes. 
          Requires Assembler to convert the Assembly Program into LLL program.

3.  HLL ( High Level Language )
 The English alphabet characters and numbers are  used to write the program. Program statements are like the English statement. 
 Human can easily understand. 
Computer can not understand . Hence requires Translator (Compiler, Interpreter ) to convert the High Level Language Program into LLL program. 
Two main types of High level Languages 
1. POP  (Procedure Oriented  Programming )
        Data and functions are separate. 
        Program consist of set of Functions or procedures.
        Example :   Pascal, C, 

2.  OOP (Object Oriented Programming) : 
         Data and functions are combined into single unit - called class.
         Program consist of set of Functions or procedures.
         Example :   C++, C# , Java, LISP

 II. Markup Languages Types 

            Used To develop the Web Pages
    
Types of  Markup Languages
SGML ( Standard Generalized Markup Language)
 HTML  ( Hyper Text Markup Language)
 XML    (extensible Markup Language)
 DHTML  ( Dynamic HTML )

  III. Modeling Language 

             Used to create the designs.

  UML (Unified Modeling Language) 

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