An input system is provided which is capable of mitigating certain inconveniences that may arise due to data processing performed by a host processor. The input system includes a first signal path, a second signal path, and a switch section. The first signal path is used for transmitting a signal from a sensor controller to a display controller through the host processor. The second signal path is used for transmitting a signal from the sensor controller to the display controller without passing the signal through the host processor. The switch section is configured to be able to switch between the first signal path and the second signal path.