To provide a controller with a touch panel, which includes the touch panel on both surfaces of a display panel and is capable of executing various kinds of control in relation to operations to the respective touch panels; and to provide a program.

By having a user operate a front surface touch panel 107 and a back surface touch panel 108 provided on both surfaces of the display panel 105, a portable device 10 can execute various control such as: the control executed by the operation of either one of the front surface touch panel 107 and the back surface touch panel 108; the control executed by sharing roles by the operation of both; and the control executed in cooperation by the operation of both. Also, since the display panel 105 is a transmission type display, the user can easily operate the back surface touch panel 108 even when looking at the display panel 105 from the front surface side.