question about open app's

[schluckauf]

hello
I'm a new MAC user so my questions might be a bit stupid
When I hit the CMD-TAB buttons , I can see the app's I've been using recently but most of the times , when I click on them, they won't open up ( I had not minimized them befor).. However, when I click on the item on the dock-bar, they do open up...Does anybody know the reason for this?
Thanks!!
best regards
Schluckauf

 

[T'hain Esh Kelch]

By command-tabbing, you bring the application to the front. You'll see the menubar change to that application. Clicking an application in the dock does the same, except it also opens a new window if that application had all windows closed.