Processor
The central processing unit consists of electronic circuits that interpret and execute program instructions as well as communicating with the input, output and storage devices.it is the center of activity,like the brain of human.
it is the central processing unit that actually transforms data into information data is the raw material to be processed by a computer,such as grades in a class,or light and dark areas in a photograph.processed data becomes information data that is organized,meaningful,and useful. in school,for instance,an instructor could enter various student grades (data),which can be processed to produce final grades and perhaps a class average (information).data that is perhaps uninteresting on its own may become very interesting once it is converted to information.