Plugin hooks help needed

Hello everyone

I have banging my head over the walls for the last few days trying to find the hooks needed to detect some plugin activity but to no avail…

Basically, what I want is to know when a plugin(or more) is:

• – installed
• – uninstalled
• – activated
• – deactivated

I must mention that I don’t need to know when my plugin goes to through those stages, but any other plugin..

Thank you in advance for any help