OPEN SOURCE

1.Father of Opensource-RICHARD STALLMAN in 1980's

2.What is Open source?
Source code should be Open
Open source means software (or code) that is made publicly available so anyone can see it, use it, modify it, and share it.

-Source Code:Open:Free/Paid
Example:Imagine a recipe:
If it is open source, the chef gives everyone the recipe.
Anyone can cook it, improve it, or share their version.

3.Examples of Opensource?
Linus
Git
GitLab
fireFox
Chromium

4.Benefits of open source?
Free or low cost
Transparent (code is visible)
Community support
More secure (many developers review code)
Fast innovation

5.Disadvantages of open source?
No official customer support (sometimes)
Can be complex for beginners
Quality depends on community
Compatibility issues may occur

6.OpenSource--Changed Term--Free(Dom) Software

7.OpenSource vs ClosedSource?
Open source:

Free to use
Code is visible
Can be modified

Closed source (proprietary):

Code is hidden
Controlled by company
You can only use it, not change it

Example:

Windows = closed source
Linux = open source

8.Community Driven Software?
Java
Python
C
C++
JavaScript
React
Angular

9.LibreOffice
OpenSource for u
Promote-->Use-->Documentation

10.IRC-Internet Relay Chat
-Used by developers to chat