JPH10283081A - Information processing system, operating method therefor and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing system, operating method therefor and storage medium with which the rising processing or falling processing of information processor and every peripheral equipment can be performed corresponding to the environment of use while individually and automatically controlling the start or stop of power supply to the information processor and every peripheral equipment. SOLUTION: In the order based on priority in the start or stop of power supply preset for each class of CPU part 110 and peripheral devices 111-116, the start or stop of power supply to the CPU part 110 and peripheral devices 111-116 is controlled and individual and automatic control is performed. Additionally, timing to control the start or stop of power supply is set by time difference (interval value) and at this set timing, control is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing system, an operation method thereof, and a storage medium storing the operation method as a program. The power supply to each peripheral device that composes the information processing system or the power supply stop is automatically controlled individually, and the startup process or the shutdown process of the information processing device and each peripheral device is performed according to the usage environment. The present invention relates to an information processing system that can be used, an operation method thereof, and a storage medium.

[0002]

2. Description of the Related Art In recent years, information processing apparatuses such as personal computers and workstations have been used in various application fields as stand-alone or desktop computers, or as network terminals.
Alternatively, it is used in various forms such as portable use by a laptop or a palmtop.

[0003] In each usage mode, the information processing apparatus includes a display as a display device, a printer as a printing device, an image scanner as an image input device, a hard disk drive as an auxiliary storage device, and an external storage device. Various peripheral devices such as a CD-ROM drive, an MO drive, and a modem as a means for connecting to a network are connected to form an information processing system.

In such an information processing system,
In many cases, power is supplied to each peripheral device from a service outlet attached to a power supply unit of an information processing apparatus.

[0005]

However, in the conventional information processing system, power supply is started by turning on a power switch of the information processing apparatus.
In the case where the power is supplied to each peripheral device from the service outlet attached to the power supply unit at the same time as the power supply to the information processing device is turned on, depending on the peripheral device, the power supply is turned on after the power is turned on until the peripheral device becomes usable. Some of them take time, and there is a problem that it is not possible to start up each peripheral device according to the use environment of the information processing system.

Further, in such a conventional information processing system, in order to perform a start-up process of each peripheral device in accordance with a use environment of the information processing system, the information processing apparatus must be started in advance. For peripheral devices that cannot be used immediately after startup, supply power from the service outlet attached to the power supply unit or from a separate power supply system by turning on the power switch manually by hand. However, there are also problems such as restrictions on the system configuration, and complicated operations for the user.

The present invention has been made in view of such a conventional problem, and an object thereof is to provide an information processing apparatus and an information processing system by turning on / off a power switch of the information processing apparatus. An information processing system capable of individually and automatically controlling power supply or power supply stop to each of the constituent peripheral devices and performing a start-up process or a shutdown process of each of the information processing devices and each of the peripheral devices according to a use environment. And an operation method thereof and a storage medium.

[0008]

According to a first aspect of the present invention, there is provided an information processing apparatus comprising: an information processing apparatus; and one or more peripheral devices receiving power supply from a power supply unit of the information processing apparatus. In the processing system, power supply to the information processing device and the peripheral device in the power supply unit is performed in an order based on a priority order of power supply or power supply stop preset for each type of the information processing device and the peripheral device. Alternatively, there is provided an information processing system including a power supply control means for controlling power supply stop.

According to a second aspect of the present invention, in the order based on the priority, the timing for controlling the power supply to the information processing device and the peripheral device or the power supply stop in the power supply unit is set. 2. The information processing system according to claim 1, further comprising a timing setting unit configured to perform the control at a timing set by the setting unit. 3.

According to a third aspect of the present invention, the power supply control means controls the power supply to the information processing device after controlling the power supply to all the peripheral devices. The information processing system according to claim 1 or 2, wherein:

According to a fourth aspect of the present invention, there is provided an information processing apparatus and one or more peripheral devices which receive power supply from a power supply unit of the information processing apparatus. A priority setting step of setting priorities of the power supply units in advance, and controlling power supply or power supply stop to the information processing device and the peripheral device in the power supply unit in an order based on the priority levels set in the priority setting step. And a power control step of performing the operation.

According to a fifth aspect of the present invention, in the power supply unit, power supply to the information processing device and the peripheral device or power supply stop is performed in an order based on the priority order set in the order setting step. 5. The operation of the information processing system according to claim 4, further comprising a timing setting step of setting a timing at which the power control is performed, wherein the power control step performs the control at a timing set by the timing setting step. 6. In the way.

According to a sixth aspect of the present invention, in the power control step, the control of the power supply to the information processing apparatus is performed after the control of the power supply to all the peripheral devices is performed. The operation method of the information processing system according to claim 4 or 5, wherein

According to a seventh aspect of the present invention, there is provided a computer-readable storage medium storing a program for causing a computer to execute the information processing system operating method according to the fourth, fifth or sixth aspect. is there.

According to the first or fourth aspect of the present invention, the information is provided in the order based on the priority order of power supply or power supply stop preset for each type of information processing device and peripheral device. Since the control of the power supply or the power supply stop to the processing device and the peripheral device is performed, the power supply or the power supply stop to the information processing device and each peripheral device constituting the information processing system can be individually and automatically controlled. The start-up process or the shutdown process of the information processing device and each peripheral device according to the use environment can be performed.

According to the second or fifth aspect of the present invention, the timing for controlling the power supply or the power supply stop to the information processing device and the peripheral device is set in the order based on the priority order. Since the control is performed at the set timing, the user can set with a certain degree of freedom the time difference between power supply to the information processing device and the peripheral device or the stop of the power supply to the peripheral device, and the information processing adapted to the usage environment can be performed. The start-up process or the shutdown process of the device and each peripheral device can be performed.

According to the third or sixth aspect of the present invention, the control of the power supply to the information processing device is performed after the control of the power supply to all the peripheral devices is performed.
Immediately after the start-up of the information processing apparatus, it is possible to set so that the peripheral devices can be used, and it is possible to construct an information processing system adapted to the use environment.

[0018]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram of an information processing system according to an embodiment of the present invention, an operation method thereof, and a storage medium.

As shown in FIG. 1, an information processing system according to the present embodiment includes an information processing apparatus 100 and a display 111 as a display device as its peripheral devices.
The printer includes a printer 112 as a printing device, a hard disk drive 113 as an auxiliary storage device, an image scanner 114 as an image input device, an MO drive 115 as an external storage device, and a modem 116 as connection means to a network. .

The information processing apparatus 100 receives power from the AC outlet 101 and supplies power to the CPU 110 and the peripheral devices 111 to 116 in response to power supply from the AC outlet 101. A power supply control circuit (power supply control) that automatically and individually controls the power supply to the information processing device and the peripheral devices 111 to 116 in the power supply unit 102 or the power supply stop by turning on / off the power supply unit 102 and the main power switch 104. Means) 103.

In the power supply unit 102, power is supplied to each of the peripheral devices 111 to 116.
2, the service outlet SC1, the display 111, the service outlet SC2, the printer 112, the service outlet SC3, the hard disk drive 113, the service outlet SC4, the image scanner 114, and the service outlet SC4. An MO drive 115 is connected to SC5, and a modem 116 is connected to service outlet SC6. The power supply to the CPU section 110 is performed via a power supply line PWC, and the power supply to the power supply control circuit 103 is performed via a sub power supply line PWS.

FIG. 2 shows a configuration diagram of the power supply control circuit 103 of the present embodiment. In the figure, the power supply control circuit 103 has a configuration including a memory unit TMM and a processing unit MPU.

The processing unit MPU is realized by a microprocessor or the like. The processing unit MPU executes an automatic power-on process or a power supply stop process to execute the power supply unit 102.
, And control signals PC1 to PC7 and PCF8. Here, the control signals PC1 to PC6 respectively indicate the service outlet S depending on the valid state / invalid state.
On / off control of a switch (provided in the power supply unit 102, not shown here) for controlling power supply and power supply stop from C1 to SC6 is performed. Depending on the state, C
On / off control of a switch (not shown) for controlling the supply and stop of the supply of the power supply line PWC to the PU unit 110 is performed, and the control signal PCF8 changes the supply state of the sub power supply line PWS according to the valid state. The switch (not shown) for controlling a supply stop state is turned off.

The control signal PCN8 is for turning on a switch (not shown) for controlling the supply stop state of the sub power supply line PWS to the supply state depending on the valid state. Main power switch 10
When the main power on / off signal MPC is turned on, the sub power supply line PWS is turned on and the power supply control circuit 103 is turned on. Signal that should be
It is not generated by the unit 110.

The program for automatic power-on processing and power supply stop processing in the processing section MPU is started by an external interrupt to the CPU section 110 by a main power ON / OFF signal MPC for transmitting ON / OFF of the main power switch 104. .

Next, the memory unit TMM includes a program unit M
The configuration includes an MP and a data unit MMD. The program unit MMP stores a processing program for power-on processing and power-supply stop processing executed by the processing unit MPU. Since the contents do not need to be rewritten, a non-volatile storage element such as a normal ROM is used. It is sufficient if used.

On the other hand, the data section MMD stores a sequence table used in the automatic power-on processing and the power supply stop processing. Since the contents of the sequence table can be set by the user, the rewritable nonvolatile memory element, for example, , EP
It is necessary to use ROM, EEPROM, flash memory or the like. If the power supply control circuit 103 can include a battery backup power supply, a volatile storage element such as a RAM may be used. The contents of the sequence table of the data section MMD are set by the power supply operation management processing performed in the system setting mode performed by the CPU section 110.

Next, the information processing apparatus 1 having the configuration described above
The operation method of the information processing system, such as the power operation management process, the automatic power-on process, the power supply stop process, and the like, which are performed by the CPU 00 will be described.

FIG. 3 is a flow chart for explaining an operation method including a power operation management process at the time of startup and an automatic power-on process in the information processing system of the present embodiment.
Note that the overall processing in FIG. 6 is mainly performed by the CPU unit 110, but the determination in step 102, the power supply control in step 103, and the automatic power-on processing in step 107 are performed by the power control circuit 103. This is a process performed by the processing unit MPU.

First, in step 101, when the main power switch 104 is turned on, the power supply to the power control circuit 103 is turned on in conjunction with the on state of the main power switch 104, and the power control circuit 103 is turned on. Become. At this time, the operation type is read, and it is determined in step 102 whether or not the mode is the system setting mode. That is, when the main power switch 104 is turned on while pressing a specific key such as a “HELP” key, the system is determined to be in the system setting mode, and the process proceeds to step 103; Then, the process proceeds to an automatic power-on process of step 107.

In the case of the system setting mode, step 10
In 3, the processing unit MPU of the power supply control circuit 103 executes C
The power supply to the PU unit 110 and the display 111 is controlled, and the CPU unit 110 and the display 111 are controlled.
Is in the operating state, and the system menu is displayed on the display 111 under the control of the CPU unit 110.

This system menu is displayed until the user selects a menu (step 104). If it is determined in step 105 that the user has selected "menu 2", for example, the power supply in step 106 is displayed. Proceed to operation management processing.

Next, the power supply operation management processing in step 106 will be described with reference to the flowchart in FIG.
This power operation management process is a process performed by the CPU unit 110. As a result of the process, a power-on sequence table is generated in the data unit MMD of the memory unit TMM of the power control circuit 103.

First, in step S201, the CPU 11
The outlet assignment table is displayed on the display 111 by the control of 0. Here, the outlet assignment table is a correspondence table indicating types of peripheral devices connected to the service outlets SC1 to SC6.
The data is stored in a data storage area of a memory (not shown) in the memory 10.

Next, in step S202, the user operates the service outlets SC1 to SC1 in the information processing system.
The type of the peripheral device corresponding to the service outlet numbers SC1 to SC6 is indicated on the displayed outlet assignment table as it is actually assigned to C6. The type of the peripheral device designated here is written from time to time in the outlet assignment table configured in the data storage area. Steps S201 and S20
The process 2 is repeated until it is determined in step S203 that the assignment of the peripheral device type to all the service outlet numbers SC1 to SC6 has been completed. FIG. 5 shows the contents of the outlet assignment table as a result of the assignment of the peripheral device types according to the actual configuration of the information processing system shown in FIG.

Next, in step S204, a preset standard sequence table and step S201
An actual device power-on sequence is automatically created from the outlet allocation table obtained by the processing of steps S203 to S203.

Here, the power-on sequence means that the peripheral devices 111 to 1 are connected to the service outlets SC1 to SC6.
16 and, more specifically, the order in which the control signals PC1 to PC6 for turning on the switches attached to the service outlets SC1 to SC6 are enabled.

The standard sequence table is a correspondence table indicating the power-on sequence for each type of peripheral device by priority as shown in FIG. 6, and a memory (not shown) in the CPU unit 110. Is stored in the data storage area. That is, in FIG. 6, when the main power switch of the system is turned on,
Display, hard disk drive, printer, C
Power is supplied to each peripheral device in the order of D-ROM drive, image scanner, MO drive, and modem. Therefore, the power-on sequence is
For service outlets SC1 to SC6, SC1,
The order is SC3, SC2, SC4, SC5, SC6.

In this embodiment, the standard sequence table shown in FIG. 6 is treated as a given one.
Using this as a mere default value, the priority of the standard sequence table may be changed and set in the power supply operation management process, whereby the user can set the standard sequence table according to the usage environment of the information processing system in advance. You can do it.

Returning to the flowchart of FIG. 4 again, in step S205, a power-on sequence table is displayed on the display 111 under the control of the CPU unit 110. Here, the power-on sequence table includes, in the order of the power-on sequence determined in step S204, the types of the peripheral devices connected to the service outlets SC1 to SC6 and the power-on time difference (interval) for the peripheral devices that are adjacent to each other. ) Is stored in the data section MMD of the memory section TMM in the power supply control circuit 103. In the power-on sequence table displayed in step S205, the item of the interval is blank.

Next, in step S206, the user sets the power-on time difference (interval [sec]) to the peripheral devices in succession on the displayed power-on sequence table according to the use environment of the information processing system. I will give instructions. The interval value specified here is set at any time.
The data is written into the power-on sequence table configured in the data section MMD. Further, the processing of steps S205 and S206 is repeated until it is determined in step S207 that the interval value setting for all service outlets SC1 to SC6 has been completed.

FIG. 7 shows the contents of the power-on sequence table after the interval value has been set. For example, the interval T1 is an interval value from when the automatic power-on process is started to when the power is supplied to the display 111, and is usually set to 0 [sec]. The interval T2 is an interval value from when the power supply to the display 111 is turned on to when the power supply to the hard disk drive 112 is turned on.

Returning to the flowchart of FIG. 3 again, if it is determined in step 102 that the mode is not the system setting mode, the process proceeds to an automatic power-on process in step 107. This will be described with reference to the flowchart shown in FIG.

First, in step 301, an initial value "1" is set in a sequence counter i. Note that the value of the sequence counter i is incremented in step 306, whereby the processing in steps 302 to 305 described later is performed in step 307 so that the maximum value of the sequence counter SEQmax (in this embodiment, SEQmax =
(6 in this embodiment) until it is determined that
Times).

In step 302, the interval value of the row whose sequence number SEQ is the sequence counter i in the power-on sequence table is read, and in step 303, the interval value is set in the software timer. In step 304, after the software timer has elapsed by the interval value, step 305
In the power-on sequence table, the switch for controlling the supply / stop of the power supply from the service outlet of the row whose sequence number SEQ is the sequence counter i in the power-on sequence table is controlled to the on state by setting the corresponding control signal to the valid state.

That is, the first of steps 302 to 305
By the second repetition, the power supply from the service outlet SC1 to the display 111 is interrupted by the interval time T.
The service outlet SC3 starts from the service outlet SC3 by the second repetition.
3 is started after the elapse of the interval time T2, and the third repetition starts the power supply from the service outlet SC2 to the printer 112 after the elapse of the interval time T3. The repetition starts the power supply from the service outlet SC4 to the image scanner 114 after the elapse of the interval time T4. The fifth repetition starts the power supply from the service outlet SC5 to the MO drive 115 for the interval time T5.
Is started after elapse, and by the sixth repetition,
The power supply from the service outlet SC6 to the modem 116 is started after the elapse of the interval time T6.

Further, in step 308, the CPU 11
Switch connected to the power supply line PWC to 0
The control signal PC7 is turned on by setting the control signal PC7 to a valid state, and power supply to the CPU unit 110 is started.

Note that a timer routine equivalent to steps 303 and 304 is inserted between steps 307 and 308, so that the CPU 1
It is also possible to start supplying power to the power supply 10. Also, the CPU unit 1 is included in the power-on sequence table.
It is also possible to add ten rows and set the interval value by the user, and to start power supply to the CPU unit 110 after a lapse of the set interval time.

Next, the power supply stop process will be described with reference to the flowchart of FIG. The power supply stop process is performed, for example, by selecting “system end” from the menu on the display 111 by the user.
Is performed when the user turns off the main power switch 104 after a series of shutdown processing by the user is performed. Note that the power supply stop process is a process executed by the processing unit MPU of the power control circuit 103.

In FIG. 9, first, at step 401,
The switch connected to the power supply line PWC to the CPU unit 110 is turned off by disabling the control signal PC7, and the power supply to the CPU unit 110 is stopped. A timer routine is inserted before step 401, and after a predetermined interval time elapses,
It is also possible to stop the power supply to the U unit 110. In addition, CP in the power-on sequence table
When the row of the U unit 110 is added, the CPU unit 110 is added after an elapse of the interval time set by the user.
It is also possible to stop the power supply to the power supply.

Next, at step 402, the maximum value SEQmax is set as an initial value in the sequence counter i.
In step 403, the sequence number SEQ is set to the sequence counter i = 6 in the power-on sequence table.
For the row of, the switch for controlling the supply / stop of the power supply from the service outlet SC6 to the modem 116 is controlled to the off state by disabling the corresponding control signal PC6, and the power supply is stopped.

Next, at step 404, the value of the sequence counter i is decremented. As a result, the processing of steps 405 to 408, which will be described later, is repeated (five times in this embodiment) until it is determined in step 409 that the sequence counter has become "1".

In step 405, the interval value of the row whose sequence number SEQ is the sequence counter i + 1 in the power-on sequence table is read, and in step 406, the interval value is set in the software timer. After the software timer has elapsed by the interval value in step 407, step 4
In step 08, the switch for supplying / stopping the power supply from the service outlet of the row whose sequence number SEQ is the sequence counter i in the power-on sequence table is controlled to the off state by disabling the corresponding control signal. .

That is, the first of steps 405 to 408
By the second repetition, the power supply from the service outlet SC5 to the MO drive 115 is stopped after the elapse of the interval time T6. By the second repetition, the power supply from the service outlet SC4 to the image scanner 114 is further stopped by the interval time. The power supply from the service outlet SC2 to the printer 112 is stopped after the elapse of the interval time T4 by the third repetition, and stopped by the third repetition.
The power supply from C3 to the hard disk drive 113 is stopped after a further interval time T3 has elapsed,
By the fifth repetition, service outlet SC1
Is stopped after the elapse of the interval time T2.

Further, in step 410, the switch for controlling the supply state of the sub power supply line PWS to the power supply control circuit 103 to the supply stop state is controlled by setting the control signal PCF8 to the valid state. Stop supplying power to the

In the power supply stop processing of the present embodiment,
Although the value set in the power-on sequence table was used as the interval value in the power supply stop sequence, the power supply stop sequence table was configured separately,
The interval value can be set by the user, and the stop timing can be controlled by an interval value unique to the power supply stop sequence.

As described above, according to the embodiment shown in FIGS. 1 and 2, CPU unit 110 and peripheral device 11
CPU units 11 in order based on the priority order of power supply or power supply stop preset for each of the types 1 to 116.
0 and the power supply to the peripheral devices 111 to 116, and the power supply to the peripheral devices 111 to 116 can be controlled individually and automatically.
Thus, an information processing system capable of performing a start-up process or a shutdown process of the peripheral devices 111 to 116 can be constructed.

The CPU 110 and the peripheral device 11
The timing for controlling the power supply or the stop of the power supply to the power supply units 1 to 116 is set by a time difference (interval value), and the control is performed at the set timing. The user can set the time difference between the power supply and the power supply stop with a certain degree of freedom, and an information processing system more suitable for the usage environment can be constructed. Furthermore, CP
Control of power supply to the U unit 110 is performed by all the peripheral devices 11
Since it is performed after controlling the power supply to 1-116,
Immediately after the startup of the CPU unit 110, it can be set so that the peripheral devices can be used.

Further, as a modified example of the information processing system of the present embodiment, the following configuration or the following functions can be added.

(1) The configuration of the power supply control circuit 103 is such that the number of pairs of dip switches and down counters corresponding to the service outlets SC1 to SC6 is equal to the number of service outlets. In this case, set the initial value of the down counter according to the set value of the dip switch,
By controlling a switch for supplying / stopping the power supply from the corresponding service outlet at the timing of the underflow of the down counter, individually and automatically controlling the power supply or the power supply stop for each service outlet. Can be.

(2) Power is not supplied to unused peripheral devices.

In order to realize this function, for example, the setting operation of the outlet allocation table in the power supply operation management processing (FIG. 4)
In steps 201 to 203), if the item of the peripheral device corresponding to the service outlet number is set to blank, the service outlet number is not included in the power-on sequence (step 204), and the power-on sequence table (Steps 205 to 205)
207). Thus, even if a peripheral device is actually connected to a certain service outlet, power is not supplied to the peripheral device.

[0064]

As is apparent from the above description, according to the present invention, the order based on the priority order of the power supply or the power supply stop preset for each type of the information processing device and the peripheral device (that is, the standard order). Sequence), the power supply to the information processing apparatus and the peripheral device is controlled or the power supply to the peripheral device is stopped. Control becomes possible, and start-up processing or shutdown processing of the information processing apparatus and each peripheral device according to the use environment can be performed. In addition, when the timing for controlling the power supply or the power supply stop is set, and the control is performed at the set timing, the power supply or the power supply stop to the information processing device and the peripheral devices that are adjacent to each other is controlled. The user can set the time difference with a certain degree of freedom, and an information processing system more suitable for the usage environment can be constructed.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an information processing system according to an embodiment of the present invention, an operation method thereof, and a storage medium.

FIG. 2 is a configuration diagram of a power supply control circuit in the information processing system of the embodiment.

FIG. 3 is a flowchart illustrating an operation method including a power operation management process and an automatic power-on process at startup in the information processing system according to the embodiment.

FIG. 4 is a flowchart illustrating a power operation management process.

FIG. 5 is an explanatory diagram of an outlet assignment table.

FIG. 6 is an explanatory diagram of a standard sequence table.

FIG. 7 is an explanatory diagram of a power-on sequence table.

FIG. 8 is a flowchart illustrating an automatic power-on process.

FIG. 9 is a flowchart illustrating a power supply stop process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 100 Information processing apparatus 101 AC outlet 102 Power supply unit 103 Power supply control circuit (power supply control means) 104 Main power switch 110 CPU part 111 Display 112 Printer 113 Hard disk drive 114 Image scanner 115 MO drive 116 Modem SC1-SC6 Service outlet PWC CPU part 110 Power supply line to PWS Sub power supply line TMM memory section MMP program section MMD data section MPU processing section MA memory address signal TD data signal PC1-PC7, PCF8, PCN8 control signal MPC main power switch on / off signal

Claims (7)

[Claims] 1. An information processing system comprising: an information processing device; and one or more peripheral devices receiving power supply from a power supply unit of the information processing device, wherein each type of the information processing device and the peripheral device is provided. Power supply control means for controlling power supply or power supply stop to the information processing device and the peripheral device in the power supply unit in an order based on the power supply or power supply stop priority set in advance. An information processing system, comprising: 2. A power supply unit comprising: a timing setting unit configured to set a timing for controlling a power supply or a power supply stop to the information processing device and the peripheral device in the power supply unit in an order based on the priority order; 2. The information processing system according to claim 1, wherein the control unit performs control at a timing set by the setting unit. 3. The power supply control unit according to claim 1, wherein the power supply control unit controls the power supply to the information processing apparatus after controlling the power supply to all the peripheral devices. The information processing system as described. 4. An information processing apparatus and 1 or 2 receiving power supply from a power supply unit of the information processing apparatus.
For the peripheral devices described above, a priority setting step of presetting the priority of power supply or power supply stop for each type, and the information processing device in the power supply unit in an order based on the priority set in the priority setting step And a power control step of controlling power supply to the peripheral device or power supply stop to the peripheral device. 5. A timing setting for setting a timing for controlling a power supply or a power supply stop to the information processing device and the peripheral device in the power supply unit in an order based on the priority order set in the order setting step. 5. The method according to claim 4, further comprising the step of: controlling the power at the timing set by the timing setting step. 6. 6. The power supply control step according to claim 4, wherein the control of the power supply to the information processing apparatus is performed after the control of the power supply to all the peripheral devices is performed. An operation method of the information processing system according to the above. 7. A computer-readable storage medium storing a program for causing a computer to execute the operation method of the information processing system according to claim 4, 5 or 6.