Method of input data in computer?

Computers takes input through input devices like keyboard and mouse. Every actions on or by the input devices are converted into electromagnetic signals. These electrical signals are sent to Signal Processing Units, which converts the analog signal into digital one and transfers it directly to processor or to processor via memory for further processing. Like sensors inside the mouse record every movement of mouse into electrical signals and transfer it to ADC (analog to digital converter.)

- chandrabhan pradhan