JPS63273954A - Information processor - Google Patents

Abstract

PURPOSE:To automatically select a desired driver by comparing successively the type signals obtained from an external connection equipment in a system rise state with the type information held by a rise information register and deciding one of device drivers in an external memory when the coincidence is obtained from said comparison. CONSTITUTION:When a system power supply is applied, a signal 201 is sent to a keyboard 4 from a rise control part 2 for production of a type signal 401. At the same time, a type signal 601 and the file name information 602 on a device drive program are read out of a rise information register 6. Then the signals 401 and 601 are compared with each other by a comparator 5 and a signal 501 is outputted when the coincidence is obtained between both signals. These actions are repeated. Hereafter both signals 501 and 602 are supplied to the part 2 every time the coincidence is obtained between both signals 401 and 601 for production of a signal 202. Thus either one of driver programs A-D is automatically specified within an external memory device 1 with use of the signal 202.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an information processing apparatus to which a plurality of types of external connection devices can be connected.

2. Description of the Related Art Conventional information processing devices include, for example, Monthly ASCII Magazine 1.
986 October issue - December issue “Pc9801 series +
0m SIS type keyboard". FIG. 3 is a diagram showing the configuration of a conventional information processing device. In FIG. 3, 1 is an external storage device such as a hard disk, 2 is a startup control unit that controls system startup, and 3 is a main storage unit.

The external storage device 1 stores a plurality of device driver programs and start-up data holding information on which device driver program to use. The operation of the conventional information processing apparatus configured as described above will be explained with reference to the drawings. First, when the system is powered on, the startup control section 2 reads startup data from the external storage device 1 . The startup control section 2 selects one of the device driver programs 5 to B based on the read startup data, and stores it in the main storage section 3.
Load into.

Problems to be Solved by the Invention However, the above configuration has the following problems when selecting a device driver program to be used. That is, each time the externally connected device changes, it is necessary to start up the system, rewrite the name of the device driver program used in the startup data in the external storage device 1, and then restart the system again.

In view of this problem, it is an object of the present invention to provide an information processing apparatus that can easily select a device driver program to be used.

Means for Solving the Problems The present invention provides an external connection device that transmits a type signal, a plurality of device driver programs each having a different function, an external storage device that stores the device driver programs, and a main storage section. , a startup information register that holds type information of the externally connected device and a name of the device driver program on the external storage device; a startup control unit that reads the device driver program into the main storage; It has a comparator that compares the type information transmitted from the externally connected device and the type information held in the startup information register, and the type signal of the externally connected device is detected in a system where multiple device driver programs exist. This information processing apparatus is characterized by automatically determining a device driver program to be used.

Effect of the Invention With the above-described configuration, the present invention compares the type signal acquired from an externally connected device at the time of system startup and the type information held in the startup information register one by one. If they match, obtain the file name of the device driver program from the corresponding entry in the startup information register. The startup control section reads the device driver program from the external storage device into the main storage section based on the file name.

Embodiment FIG. 1 is a diagram showing the configuration of an information processing apparatus in an embodiment of the present invention. In FIG. 1, 1 is an external storage device such as a hard disk, 2 is a startup control unit that controls system startup, and 3 is a main storage unit.
It is the same as the figure.

The external storage device 1 stores a plurality of device driver programs. 4 is an externally connected device such as a keyboard, 6 is a comparator, and 6 is a startup information register that holds type information of the externally connected device 4 and the file name of the device driver program paired with it.

The operation of the information processing apparatus configured as described above will be described below with reference to the flowchart shown in FIG.

First, when the system is powered on, a signal 201 is sent to the keyboard 4 from the startup control section 2 in step S1. In step S2, the type signal 401 is returned from the keyboard 4. In step S3, the type information signal 801 and the file name information signal 602 of the device driver program are read out from one slot of the start-up information register 6. In step S5, the signal 401 and the signal are compared by the comparator 6, and if they match, the signal 601 is sent out and the process proceeds to step S6; if they do not match, the process proceeds to step S4. In step S4, the control is changed so that information is read from the next slot in the start-up information register 6, and the process is repeated from step S3. If they match in step S6, the startup control unit obtains the file name information 602 of the device driver program corresponding to the matched type information 601, and sends the corresponding file read control signal 202 to the external storage device 1. Send to. In step S7, the device driver program selected based on the file name information 602 of the device driver program is read into the main memory 3 from the external storage device 1. In this way, any one of the device driver programs D to D existing in the external storage device 1 can be used.

In this embodiment, 4 is an input device such as a keyboard, but it may be any externally connected device such as a CRT display, font ROM back, printer, pointing device, option board, etc. as long as it can send out its own type signal.

As described in detail, according to the present invention, it is possible to automatically select a device driver program to be used depending on the type of externally connected equipment. For example, when five types of keyboards are connected, the keyboard device driver B can be automatically selected, and when a B type keyboard is connected, the keyboard device driver B can be automatically selected, which has a great practical effect.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an information processing apparatus according to an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of the embodiment, and FIG. 3 is a block diagram of a conventional information processing apparatus. 1... External storage device, 2... Startup control unit, 4... External connection device, 6...
Comparator, 6...Start-up information register. Fig. 1 dθI Fig. 2 Fig. 3 External record Okusaku 1

Claims (1)

[Claims] An externally connected device that transmits a type signal, a plurality of device driver programs each having a different function, an external storage device that stores the device driver program, a main storage section, type information of the externally connected device, and the device driver. a startup information register that holds the name of the program on the external storage device; a startup control unit that reads the device driver program into the main storage; and a startup information register that stores the name of the program on the external storage device; In systems where multiple device driver programs exist, the device driver program to be used is automatically determined using the type signal of the externally connected device. An information processing device characterized by: