F.O.S.S. INTRODUCTION what is free software

 what is free software (DON'T BE IN MISCONCEPTION WITH FREEWARE)

FREE SOFTWARE IS A SOFTWARE THAT GIVES USER FREEDOM TO RUN SPECIFIC SOFTWARE FOR SPECIFIC PURPOSE E.G. FOR STUDY,CHANGES OR ETC.

they are totally different from freeware  for e.g. Google docs ,sheets .Microsoft Office etc those listed software are free to use but they do not disclose their source code . hence this kind of software are freeware instead of free software. and free software availability of source code is precondition 

let us see what are free software 

the formal definition of free software was give by free software foundation in 1986 and it was coined by Richard Stallman .In this Richard stallman says that the software is free if and only if it follows some essential freedom.




















THE FOUR ESSENTIAL FREEDOM:

FREEDOM 0: FREEDOM TO RUN SOFTWARE AS YOUR WISH FOR ANY PURPOSE

FREEDOM 1: THE FREEDOM TO STUDY OR ANALYSE HOW PROGRAM OR SOFTWARE 

WORKS . IN THIS SOURCE CODE AVAILABILITY IS PRECONDITION 

FREEDOM 2: THE FREEDOM TO REDISTRIBUTE  COPY OF OLD SOFTWARE

FREEDOM 3: THE FREEDOM TO REDISTRIBUTE COPY OF NEW VERSION OF SOFTWARE  MADE BY YOU WITH HELP OF OLD SOFTWARE . IN THIS SOURCE CODE AVAILABILITY IS PRECONDITION .

LET US SEE EXAMPLES OF FREE SOFTWARE 

operating system: linux ,BSD

servers: Apache web servers

web browser: mozilla 




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