Where is most of the information processed in a computer

CPU is the correct suitable one-word answer for the above question.

Explanation:

CPU stands central processing units which are the only responsible device for the processing of the instruction given by the user for the demand of some output. CPU is divided into two parts - Arithmetic logic unit and control unit. On which Arithmetic logic unit is responsible for the processing of Arithmetic and logical operation and the control unit is have to control all the operation.

In a computer system there are five main components - -

Monitor CPU keyboard mouse Memory

On which except CPU and Memory, all are the part of the input and output device. Memory and CPU are wrapped in one box known as the Processor device in which memory has to store the data and CPU has to process the data.