PURPOSE: To provide the electronic book with the resuming function which makes a user feel no time blank by displaying proper contents on a screen when operation is resumed at the start of use.

CONSTITUTION: This device is equipped with a resuming return processor 11, 1st and 2nd screen display data storage devices 2 and 3 which store the contents of character information to be outputted to a display device 1, a resuming-time screen processor 12 which changes and displays the contents of character information outputted to the display device 1 first on the display device 1 until the resuming return process of the resume return processor 11 ends, an internal storage device 6 which stores resuming return data, and a return data writing device which writes resuming return data in the internal storage device 6 in response to an indication from the resuming return processor 11.