Importance

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Abstract

A side controller supported so as to be capable of oscillating within a predetermined range and capable of pushing is disposed on the side face of a PDA, a current page displayed on a display part is controlled to scrolled in a first direction by oscillating operation of the side controller, a current page is transferred to a predetermined processing mode to display a screen page corresponding to the processing mode by prolonged pushing operation of the side controller for a time longer than a predetermined time, a current page is transferred to a screen page other than a predetermined screen page, for example, a current page is transferred to a processing mode unrelated to a operating button displayed on the current page, for prolonged pushing operation of the side controller long time, further, a list of reply mail sentences which is input beforehand is displayed as a screen page of a list of reply mail sentences by activation of a sending mode for sending a reply mail to a received mail when a mail screen page showing received mail is displayed, a pointer is moved on a screen page of a list of sending mail sentences by oscillating operation of the control switch part, a sending mail sentence on which a pointer is positioned is transmitted to a mail sending and receiving function as a sending mail, for example, a list of sending mail screen page in a sending mode is displayed by pushing operation of the control switch part for a time longer than a predetermined time when a mail screen page is a mail contents displaying screen page for showing a mail contents.

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First Claim