It seems very cool that nobody can use hardware parts of your pc like mouse, keyboards CD/DVD drive doors and Zip doors without your permission.

it is not about to grant permission for using these hardware parts to anybody specially children who don’t miss any opportunity to use your home Pc because of their curious nature but it is about to lock these hardware parts without let them to know so that they believe that these hardware parts are not working properly and you can use your system without hassle that in your absence children can use Cd drive for playing Cds and use keyboard and mouse for creating a big problem.
It has become very easy with “Toddle keys”. It is a very useful tool especially for parents which fix the limits of working on Pc for children. It allows parents to lock computer keyboard, Cd /DVD drive doors and power off buttons. You can select the images and sounds to be used by copying them to the Toddler Keys folder. You can also change password to exit.

Supporting OS – Windows All
Download Free Toddle keys

Quick use
Just install it
Icon will display in notification area (Right corner of Task bar)
Go with mouse on icon and press right mouse button

Select option as per your desire.
To exit the locked screen, just type the word QUIT.

Trick: double clicking icon will directly lock the keyboard and mouse
Note: the power button can only be disabled with Windows XP

Tags: Free Software, utility