A terminal device controls a scroll display process for scrolling and moving a display region part of content displayed on a touch panel based on a slide operation input, and detects, during the slide operation input, any one input state of the number of slide operation inputs being simultaneously executed and the touch area involved in the touching on the touch panel for execution of the slide operation input, and controls a scrolling speed, which represents a moving speed exhibited when the display region part of the content is scrolled in the scroll display process, or a scroll movement amount, which represents a movement amount by which the content is scrolled, during the slide operation input based on the detected input state.