JPH029060A - Identification display method for magnetic disk device - Google Patents

Abstract

PURPOSE:To accurately display a magnetic disk device corresponding to a program under operation by utilizing physical equipment identification numbers which belong to the magnetic disk devices for selecting the individual magnetic disk devices and giving a logical number from a microcomputer to a character display provided on an outer surface of the selected device. CONSTITUTION:By the microcomputer device 1, a device selecting line 7a, for instance, is turned into significant condition, and successively a signal corresponding to a character which stands for the logical equipment number is given via a display output line 8 to the relevant magnetic disk device 4a. In the device 4a, a display output signal is selected by an AND-gate 41 to be given to a receiving circuit 42, and based on this, a received character code is converted by a display decoder 43 to be displayed on the character display 5. This character code is sent automatically by the program contained in an operating system of the device 1, so as to simplify the display. Then, the display device 5 is provided in a conspicuous position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The invention of B relates to a display method for identifying the logical machine number of a magnetic disk device when a plurality of magnetic disk devices are controlled by a microcomputer device.

[Prior Art] FIG. 5 is an explanatory diagram showing machine numbers of magnetic disk devices in a microcomputer device configured by connecting a plurality of conventional magnetic disk devices. In the figure, 1
is a microcomputer device, 2 is a display section using a cathode ray display tube, 3 is a keyboard section, 4a, 4b, 4
c and 4d are magnetic disk devices. Conventionally, in this type of magnetic disk drive, identification symbols such as 1, 2, A, B, etc. are attached in advance to the outer surface of each of the magnetic disk drives 4a, 4b, 4c, and 4d, as shown in FIG. Often. In addition, these disk devices 4a to 4d have physical machine numbers to be controlled by the microcomputer l, and the control program of the microcomputer l converts the logical machine numbers to physical machine numbers and assigns the corresponding magnetic disk units. Specify the physical machine number of the diskette device and write/read data. However, from the perspective of the person using the microcomputer device 1, what is seen is 1 rather than the physical machine number.
, 2 or A, B, etc. is easier to understand. For example, in an operating system with a language called BASIC, l, 2゜3, etc. are used, and CP/M, A, B for operating systems such as MS/DO8.

C2... is used. Furthermore, these logical machine numbers may be determined depending on which magnetic disk device read the initial program, and the physical machine number and logical machine number may not correspond to one unit in a fixed manner. be. Furthermore, the number of magnetic disk drives used is less than the number of installed magnetic disk drives, and it may become unclear which magnetic disk drives are used for writing and reading data.

[Problems to be Solved by the Invention] In the microcomputer device configured by connecting a plurality of conventional magnetic disk devices, as described above, the identification displayed on the outer surface of the magnetic disk devices 4 a - 4 b is Since the machine number displayed for the microcomputer device I is different from the logical machine number, there is a problem in that it causes operational confusion for the person using the microcomputer device l.

This invention was made to solve the above-mentioned problems, and the logical machine number is displayed on the character display provided on the outer surface of the magnetic disk device, and the logical machine number is The object of the present invention is to obtain a method for identifying and displaying a magnetic disk device, which can be changed and set arbitrarily from a microcomputer device.

[Means for Solving the Problems] A magnetic disk device identification display method according to the present invention selects an individual magnetic disk device based on the physical machine number of the magnetic disk device, and displays information on the outer surface of the selected magnetic disk device. A microcomputer device gives a logical machine number to the provided character display, and the logical machine number is displayed on the character display.

[Function] The identification display method for a magnetic disk device in this invention is as follows:
A character display is provided on the outer surface of the magnetic disk drive, and the microcomputer selects an individual magnetic disk drive based on the physical machine number of the magnetic disk drive, and displays the logical machine number on the character display of the selected magnetic disk drive. As, 1,2
．．・・・・・・Or A, B, ・・・・・・
Display symbols such as

Embodiment] FIG. 1 is an explanatory diagram showing an identification display method for each magnetic disk drive in a magnetic disk drive identification display method according to an embodiment of the present invention. In the figure, 4 is a magnetic disk device, 5 is a character display for displaying a logical machine number, and 6 is a floppy disk insertion slot. Here, the character display 5 has a logical machine number serviced by the microcomputer device, which is 1.1 in the operating system for the BAS IC language. 2. 3. 4 is used,
In addition, in operating systems such as CP/M and MS/DO5, A, [3', C, ......,
N, O, P are used. Furthermore, here, it is assumed that an X can be displayed on the character display of the magnetic disk device that is not used by the operating system. There are various kinds of character display devices, such as segment display type or dot matrix display type.

FIG. 2 is a diagram showing the electrical connection relationship of each part for realizing the identification display method of the magnetic disk drive shown in FIG. 1. In the figure, 1 is a microcomputer device, 4a, 4b, 4c, and 4d are magnetic disk devices according to the present invention, 5 is a character display, 41 is an ant gate, 42 is a receiving circuit, and 43 displays characters on the character display 5. This is a display decoder for Also 7a, 7b.

7c and 7d are magnetic disk devices 4a, 4b, and 4, respectively.
A device selection line 8 is used to select the destination magnetic disk device when sending a character display signal to the microcomputer 1 to the magnetic disk devices 4a, 4b, 4c, and 4d, respectively. This is a display output line for passing. Although detailed explanation is omitted here, 9 denotes magnetic disk devices 4a, 4b, respectively.
These are various control signal/data lines for moving the magnetic head, writing/reading data, etc. for 4c and 4d.

Here, displaying the logical machine number A on the character display 5 of the magnetic disk device 4a (#1) will be explained as an example. First, is the microcomputer device 1 a device selection line? a (#1) is made significant, and then a signal corresponding to the character representing the logical machine number A is output to the display output line 8 via the display output line 8.

In the magnetic disk drive 4a (#1), a display output signal is selected by an AND gate 41 and provided to a receiving circuit 42. The character code received by the receiving circuit 42 is converted and displayed by a display decoder 43 into a display pattern on the character display 5. By having the program included in the operating system of the microcomputer device 1 automatically send out the character code, it is very easy to display the character code on the character display 5 of the magnetic disk device 4a (#1). Logical machine number A can be displayed.

Furthermore, since the magnetic disk drives 4a to 4d shown in FIG. 1 are installed facing various directions, the logical machine number displayed on the character display 5 must be easily visible to the human eye. .

FIG. 3 is an explanatory diagram showing a display method using a character display corresponding to the set position of a magnetic disk device in a magnetic disk device identification display method according to another embodiment of the present invention, and FIGS. 4(a) and ( b) is a diagram showing a switch device for detecting the set position of the magnetic disk device of FIG. 3 and its internal configuration; As shown in FIG. 3, each magnetic disk device 4a.

For 4b and 4c, the logical machine number A is displayed erect on the character display 5 regardless of the setting position where each is installed. Also, Fig. 4 (a) and (+))
In the switch device 10 shown in FIG. 1, a weight 13 having a movable contact 12 moves by gravity depending on the set position where the magnetic disk device is attached, and the movable contact 12 connects to each fixed contact 11 a, 1 l b, 11 c,
11d, and the switch device 10 performs a switching operation.

Therefore, by using the above-described switching operation of the switch device 10 and having the character display 5 or the microcomputer device read the connection information of the switch device 10, the displayed characters as the logical machine number can be correctly displayed. can be done.

Note that although the above embodiment has been described with reference to a magnetic disk device, the invention is not limited to this and can also apply to a magnetic tape device.

The invention may also be applied to various input/output devices added to microcomputer devices.

[Effects of the Invention] As described above, according to the magnetic disk device identification display method of the present invention, an individual magnetic disk device is selected based on the physical machine number of the magnetic disk device, and an external device of the selected magnetic disk device is A logical machine number is given to the character display provided on the surface by the microcomputer, and the logical machine number is displayed on the character display, so that the magnetic disk drive can be correctly configured in correspondence with the running program. This has the excellent effect of providing extremely high operability to the person operating the microcomputer device.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an identification display method for each magnetic disk drive in a magnetic disk drive identification display method which is an embodiment of the present invention, and FIG. 2 is an illustration showing an identification display method for a magnetic disk drive shown in FIG. 1. Figure 3 shows the electrical connection relationship of each part to realize the identification display method.
4(a) and (b) are explanatory diagrams showing a display method using a character display corresponding to the setting position of a magnetic disk device in a magnetic disk device identification display method according to another embodiment of the present invention. 3 is a diagram showing a switch device for detecting the set position of the magnetic disk device and its internal configuration, and FIG. FIG. 3 is an explanatory diagram showing a machine number display of a disk device. In the figure, 1...microcomputer device, 2...
- Display section, 3... Keyboard section, 4, 4a
, 4b, 4c, 4d... magnetic disk device, 5...
Character display, 6... Floppy disk insertion slot, 7a
, 7b, 7c, 7d...Device selection line, 8...Display output line, 9...Various control signal/data lines, lO...
・Switch device, lia, llb, lc, 1ld-fixed contact, 12... movable contact, 13... weight, 41.
. . . AND gate, 42 . . . Receiving circuit, 43 . . . Display decoder. In addition, the same symbols in the figures indicate the same or equivalent parts. Diagram: Agent Masuo Oishi -\ 4゛ Acceptance - f-chair 7'' female J

Claims (1)

[Claims] In a microcomputer device having a plurality of magnetic disk devices as external storage devices, a character display is provided on the outer surface of the magnetic disk device, and the magnetic disk device has a physical machine number selected by an electrical signal, In order to display the logical machine number in letters and figures for each of the above-mentioned magnetic disk drives, the computer equipment specifies the physical machine number using a common transmission signal line for the physical machine number and a signal line for selecting individual magnetic disk drives. A magnetic device characterized in that the microcomputer device gives a code corresponding to the character figure as a logical machine number, so that the logical machine number is displayed in the character figure on the character display of the magnetic disk device. Disk device identification display method.