Description
1.0 INTRODUCTION
1.1 PROJECT BACKGROUND
In the present modern world, switching circuits have become an indispensible
part of our life. Right from your mobile phone to the various security systems,
they can be seen everywhere. Even the horn of your motor car is a kind of switch
used to warn people and vehicles in front of its presence. The sole purpose of a
switch is to activate or deactivate a device. They may be in the form of a visual