I cannot find a place like control panel in Windows where I can configure Ubuntu. I would be delighted to find where to configure the system. And by the way, how to use the configure Ubuntu according to my own appetite?
From Unity Dash you can search System Setting.
Advance Setting / Gnome Tweak Tool / Tweak Tool
Use System settings to tweak Ubuntu settings.
To open System settings
Open dash and search for "System Settings"
open terminal( Ctrl+Alt+T ) and type
This will help you to configure your Ubuntu
Click the gear-cog icon in the top right of your screen, and click "System Settings", here you will find a control-panel equivalent, as in Windows. Here is a link describing each setting: https://help.ubuntu.com/12.04/ubuntu-help/prefs.html
I hope this helps