Computer having resume function

An operating method of a data processing system including a resume function and a security management system having prestored identification data, wherein the data processing system comprises:

• a data processor for processing data;
• a power switch for switching the data processing system On and OFF;
• a data storage device for storing contents of data processing performed by the data processor in response to an OFF state of the power switch;
• a data input device for inputting identification data for security management;
• and
• collating means for collating identification data input by the data input device and prestored identification data to ensure system security;
• wherein the operating method comprises the steps of:
• switching off the power switch;
• saving the contents of data processing performed by the data processor in the data storage device and stopping the data processing when the power switch is turned OFF;
• then
• switching on the power switch;
• inputting identification data via the data input device after the step of turning on the power switch;
• collating the input identification data and prestored identification data;
• resuming data processing from a data processing condition that existed when the power switch was turned off in accordance with the contents of the data saved in the data storage device when a coincidence between the input identification data and prestored identification data is detected by the collating means;
• and
• inhibiting the system from executing data processing to protect the data processing from an unauthorized person, when noncoincidence between the input identification data and the prestored identification data is detected by the collating means.

A data processing system having a resume function and a security managing function, comprising:

• a switch for switching on and off a power of said data processing system;
• a switch detector, coupled to the switch, for detecting that the switch has switched on or off the power;
• memory means, coupled to the switch, for storing contents of data processing performed by said data processing system in response to an indication of switching off of the power by said switch, and for holding identification data;
• a data input device for inputting identification data;
• discriminating means, coupled to the switch detector, the memory means, and the data input device, the discriminating means being responsive to the switch detector, for discriminating whether identification data input from the data input device after the switch has switched on the power coincides with identification data held in the memory means;
• executing means for, in response to detection of a coincidence by the discriminating means, executing data processing, from processing executed immediately before the main power was switched off, in accordance with a storage content of the memory means;
• and
• means for inhibiting the data processing system from being executing data processing from process executed immediately before the power was switched off, to protect contents of the data processing from an unauthorized person, in response to detection of a non-coincidence by the discriminating means.

A computer system having a resume function of restoring contents saved in a nonvolatile storage means when the system is powered to thereby continuously execute a process from a state immediately before the system has been shut down, comprising:

• input means for inputting a password;
• first means for determining whether or not the resume function is enabled when the system is powered;
• second means for determining whether or not the password is set in the system;
• third means for determining whether or not a password identical to the set password is newly inputted from the input means when the second means determines that the password is set in the system;
• and
• fourth means for inhibiting, until the third means determines the coincidence of the inputted password with the set password, the system from being resumed to the state immediately before the system has been shut down even if the first means determines that the resume function is enabled.

A method for setting up a computer system having a data input means, and a resume function of restoring contents saved in a nonvolatile storage means when the system is powered to thereby continuously execute a process from a state immediately before the system has been shut down, the method comprising the computer steps of:

• (a) determining whether or not the resume function is enabled;
• (b) determining whether or not a password is set in the system when the step (a) determines that the resume function is enabled;
• (c) determining whether or not a password identical to the set password is newly inputted from the input means when the step (b) determines that the inputted password coincides with the set password;
• and
• (d) inhibiting, until the step (c) determines the coincidence of the inputted password with the set password, the system from being resumed to the state immediately before the system has been shut down even if the step (a) determines that the resume function is enabled.

A computer system having a resume function of restoring contents saved in a nonvolatile storage device when the system is powered to thereby continuously execute a process from a state immediately before the system has been powered off, comprising:

• input means for inputting a password;
• first means for determining whether or not the resume function is enabled when the system is started;
• second means for determining whether or not the password is set in the system;
• third means for determining whether or not a password identical to the set password is newly inputted from the input means when the second means determines that the password is set in the system;
• fourth means for inhibiting, until the third means determines the coincidence of the inputted password with the set password, the system from being resumed to the state immediately before the system has been powered off even if the first means determines that the resume function is enabled;
• and
• fifth means for executing a normal processing while passing the executions of the second and the third means when the first means determines that the resume function is not enabled when the system is powered.

A method for setting up a computer system having a data input means and a resume function of restoring contents saved in a nonvolatile storage device when the system is started to thereby continuously execute a process from a state immediately before the system has been powered off, the method comprising:

• a first step for determining whether or not the resume function is enabled;
• a second step for determining whether or not a password is set in the system when the first step determines that the resume function is enabled;
• a third step for determining whether or not a password identical to the set password is newly inputted from the input means when the second step determines that the inputted password coincides with the set password;
• a fourth step for inhibiting, until the third step determines the coincidence of the inputted password with the set password,, the system from being resumed to the state immediately before the system has been powered off even if the first step determines that the resume function is enabled;
• and
• a fifth step for executing a normal processing while passing the executions of the second and the third steps when the first step determines that the resume function is not enabled.