Of course :)
As I mentioned go to: "Manage>Adminitrative Data". Then "Create new Tab" wile it need to be selected in "Tab" field as one of aviable when you add "New data" which is an extra collumn.
Then you can insert data in computer description or if it's the same data for multiple computers using Mass Processing.
This will add extra data collumn for all computers in database (you must show this collumn to see data) but it must be filled in manually.