A remote control system includes a PC and a MFP capable of remotely controlling an external device. PC includes a browsing portion to receive an operation screen from the MFP, a display control portion to allow a projector to project the received operation screen onto a projection plane, and a position detection portion to detect a position pointed to by a user in the projected operation screen. The browsing portion transmits to the MFP a command which is included in the operation screen and is related to the detected position in the operation screen. The MFP includes an operation screen transmission portion to transmit to the PC the operation screen, including a command for specifying control, for accepting an operation, a command reception portion to receive a command transmitted from the PC, and a process control portion to control the external device or the device itself in accordance with the received command.