JPH02163825A - Information processor - Google Patents

Abstract

PURPOSE:To easily set up a system by automatically switching off and on a power supply via a control means in the case the control information is changed by a changing means. CONSTITUTION:A nonvolatile memory 7 serving as a battery back-up memory stores the active partition information showing an operating system which is under use for example. In the case the active partition information stored in the memory 7 is changed, a power supply is automatically switched off and then on again via a sequencer 8. Thus it is possible to set up a system with no intervention of an operator.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Use) This invention relates to information processing devices such as personal computers, and particularly relates to system setup when changing system information. This invention relates to an improved information processing device.

(Prior Art) For example, in a personal computer, if a number of operating systems are stored in a magnetic disk drive, when the personal computer is turned on, one of these operating systems is activated. , to be loaded into main memory. Active partition information indicating which system is to be loaded into the main memory when the power is turned on is normally stored in a magnetic disk device.

By the way, the active partition information stored in this magnetic disk device can be changed by the operator. But if I change this:
The operator has to manually turn off the power to the personal computer and then turn it back on to load the modified operating system into memory and set up the system, making the operation cumbersome. It was something.

(Problems to be Solved by the Invention) This invention solves the problem that setting up a system when changing active partition information is complicated. It is an object of the present invention to provide an information processing device that can easily set up a system when changing information.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention provides a storage means for storing control information, and a control system stored in the storage means.
A changing means for changing the a information, and a control means for turning off and turning on the power when the control information is changed by the changing means are provided.

(Operation) That is, in the present invention, when the control information is changed by the changing means, the control means automatically cuts off the power,
By inputting the information, the system can be easily set up without operator intervention.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

Figure 1 is ti! 7 shows the configuration of a report processing device, for example, a personal computer.

The CPUI controls the entire device;
A pass line 2 is connected to the UI. This path line 2 includes a main memory 3 for storing the operating program of the CPU, etc., a human power system@4, a display device 5, and a magnetic disk device! 6, a nonvolatile memory 7, and a sequencer 8 are connected. A power source 10 is connected to the sequencer 8 via a power switch 9. This power switch 9
When turned on, a 7ti source is supplied to each part of the device.

The main memory 3 stores CPU operating programs and the like read from the magnetic disk device 6.

The input device ¥4 is constituted by, for example, a keyboard, and various information is inputted from this input device 4.

The display device 5 is constituted by, for example, a CRT display device, and information etc. manually input from the human-powered device 4 are displayed on the display device 5.

The magnetic disk device 6 stores an operating system, other programs, and various data.

The non-volatile memory 7 is, for example, a battery backup memory, and stores active φ partition information indicating, for example, the operating system or operating system currently in use.

The sequencer 8 turns off and turns on the power according to the control of the CPU 1. For example, a contact is normally in an on state, and this contact connects to a relay connected in series to the power switch 9, and a coil of this relay. CP
Control gl output from U1! (A). Therefore, when a control signal is supplied from the CPUI, this relay becomes an OFF state, and this OFF state is maintained by a time constant circuit. When the time set in the time constant circuit has elapsed, it will turn on again.

FIG. 2 shows the storage contents of the magnetic disk device 6! 11
This is shown in three ways. This magnetic disk device 6 includes
The first operating system 08-1, the second operating system 05-2, etc. are jc! t
This storage information is managed by a directory.

The operation of the above configuration will be explained with reference to FIG.

When the information processing apparatus is used, when the power switch 8 is turned on, the contents of the nonvolatile memory 6 are read and it is determined which operating system is set (step STI, 2). As a result, if it is determined that the first operating system 05-1 is set, the first operating system 05-1 is read from the magnetic disk device 6, and this first operating system 08 -1 is loaded into main memory 3. Therefore, the system is set up by this first operating system 05-1, and the display device 5 displays a message that can be operated in the first operating system 09-1 mode, as shown in FIG. 4(a). is displayed (step 5T3).

On the other hand, the first operating system 08-1
In this mode, as shown in FIG. 4(b), when the system switching command “CHGSYS” is input manually, the active partition information in the non-volatile memory 7 is changed to the first
The second operating system 08-1 is changed to the second operating system 05-2 (step 5T5).

After this, the sequencer 8 is operated, the power is first cut off, the power supply to the CPUI is stopped, and the power is turned on again after a few seconds (step 5TY).

When the power is turned on, the contents of the nonvolatile memory 7 are read as described above, and it is determined which operating system is set (step STI,
2). As a result, the second operating system 0
5-2 is set, the second operating system 0 is transferred from the magnetic disk device 6.
3-2 is read and this second operating system OS-2 is loaded into the main memory 3.

Therefore, this second operating system 0
The system is set up in step S-2, and the display device 5 displays that it can operate in the second operating number system 05-2 mode, as shown in FIG. 4(c) (step 5T7). .

In this state, when the "CI(GSYS") command is executed, the contents of the nonvolatile memory 7 are changed by the operation described above (step 5T5), and the power is turned off and on in sequence by the sequencer 8 (step 5T6).
.

According to the above embodiment, the non-volatile memory 7 has an active memory.
Remember the partition information and use this active
When the partition information is changed, the sequencer 8 automatically turns off the power and then turns it on again. Therefore, the system can be set up without operator intervention.

In the above embodiment, the sequencer 8 is configured by a relay and a time constant circuit, but is not limited to this, and can also be configured by a logic circuit.

Further, in the above embodiment, the active/(-tension information is stored in the non-volatile memory 7, but it is not limited to this, and it is also possible to store it in the directory of the magnetic disk device 6, for example. be.

Further, in the above embodiment, the case where the operating system is changed has been described, but the invention is not limited to this, and the present invention can also be applied to, for example, when changing the connection of a magnetic disk device. .

It goes without saying that various other modifications can be made without departing from the gist of the invention.

[Effects of the Invention] As described in detail above, according to the present invention, when the control information is changed by the changing means, the control means automatically turns off and turns on the power, so that the operator's operation is not required. It is possible to provide an information processing device that allows system setup to be performed easily without any trouble.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a diagram schematically showing the storage contents of a magnetic disk device, and FIG.
FIG. 4 is a diagram shown for explaining the present invention in detail. 1...CPU, 6...Magnetic disk device, 7...
Non-volatile memory, 8... Sequencer, 9... Power switch, 10... Power supply. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] A storage means for storing control information; a changing means for changing the control information stored in the storage means; An information processing device comprising: a control means for controlling; and an information processing device.