ASSALAMOALAIKUM micro controller are very tiny specail purpose micro processer computerts they are also called dedicaated computers as they are used toper form. some specific tasks these are free quantity used in appliances such s washing machines micro waves ovens cellphones and automobiles engines etc. to controll them autcomticlly micro controlles are fixed in these appliances is a single chip and contin all components for controlling them they have made our lives as simple as possible.