Try this: ControlCenter (like start in windoze)/Applications/Monitoring/KDE System Guard. Click on the 'Process" tab and you should see all the processes that are running. Be ready, there will likely be a lot.
There are a lot of monitoring tools there to. Disk space, memory etc.
Hope this helps.
What 'stupid' question were you talking about?
edit: misspelled a word. Drat that makes me
I can't spell spit.