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?
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
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