To speedily and easily realize the application operation environment desired for a user when recovered from a power saving mode in an electronic equipment having a power saving function.

This equipment is provided with an automatic activation application register file 162 for registering an application or file to be used by the user after recovery and an automatic application activating program 161 for automatically performing processing for activating the application or file registered in this file 162 when shifted into power saving mode. A power saving control program 132 is changed into power saving mode by saving the execution environment of the application or file provided as a result of the said start and resets this saved application execution environment, which is scheduled to be used after recovery, after the power saving mode is recovered.