Free Software

“Free software” is a matter of liberty, not price. To understand the concept, you should think of “free” as in “free speech,” not as in “free beer.”

Free software is a matter of the users' freedom to run, copy, distribute, study, change and improve the software. More precisely, it means that the program's users have the four essential freedoms:

0

The freedom to run the program, for any purpose.

1

The freedom to study how the program works, and change it to make it do what you wish. Access to the source code is a precondition for this.

2

The freedom to redistribute copies so you can help your neighbour.

3

The freedom to distribute copies of your modified versions to others. By doing this you can give the whole community a chance to benefit from your changes. Access to the source code is a precondition for this.

Some of the popular software of FLOSS:

• Operating System: BOSS GNU/Linux, Debian GNU/Linux
• Office Suite: Libre Office
• Mail Client: Mozilla Thunderbird, Iceape
• Internet Browser: Mozilla Firefox
• Mail Server: Postfix, Sendmail
• Database: PostgreSQL
• VOIP: Asterisk, FreeSwitch