4. GNU Operating System.
The GNU operating system is a complete free
software system upward-compatible with Unix.
5. What does GNU stand for?
GNU stands for “GNU's Not Unix”.
6. The basics of GNU operationg system:
In 1983 by Richard Stallman.
Free Libre operating system: the GNU operating
system.
7. The advantages of free software:
Provides full freedom
No spying on users
Provides better security
8. The disadvantages of free software:
Discloser of trade secrets.
No “ black boxes “ are possible.
Fewer conflicting due to marketing pressure.
9. FSF’s mission:
“Our mission is to preserve, protect and
promote the freedom to use, study, copy,
modify, and redistribute computer software,
and to defend the rights of Free Software
users.”