1. Openness: linux operating system complies with GNU specification, and the code is shared, so it is easy to realize system tailoring and customized development.

2. Multi-user: System resources can be accessed and used by different users with their own rights, without affecting each other.

3. Multitasking and multithreading: Different tasks and threads deal with a series of independent but internally related events almost simultaneously

4. Device independence: linux operating system treats all external devices as device files. As long as their drivers are installed, any user can manipulate and use these devices just like ordinary files, without knowing their specific existence forms.

5. Rich network functions: A perfect built-in network is a major feature of Linux.

Disadvantages:

It mainly comes from hardware support, and for ordinary users, its operability is not as convenient and practical as windows, and ordinary users are not very good at using it.