JPH05158771A - Meth0d and system for file management - Google Patents

Abstract

PURPOSE:To improve the convenience of use by storing directories to manage files stored in a storage medium in the memory of a computer and outputting multiple directories to the output unit of the computer. CONSTITUTION:A memory 2 or the like is connected to a processor 1, further multiple storage medium 6 are detachably connected to a driver 5. When a user prepares a file in a file area 21 of the storage 2, and the directory is prepared in a management information area 20 of the storage by inputting the name of the medium, medium identifier, the name of file, and the attribute of the file. The directory is prepared by storing the address and size storing the file prepared by a user in the management information area 20. This directory stored in the storage 2 is outputted to the output unit 3. Thus, the file management necessary for a series of processing is simplified by displaying multiple files stored in multiple storage medium.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for managing files stored in a plurality of storage media in a divided manner. In particular, the present invention relates to a method suitable for users (government staff, sales staff) who are on-site to use files stored by dividing them into a plurality of IC cards in public relations activities such as banking and distribution business.

[0002]

2. Description of the Related Art Up to now, banks and information centers for distribution business have been business offices. However, in recent years, it has become important to proactively engage with customers outside of sales offices, and it has become necessary to place information bases on the go.

Information processed by users (public relations staff, sales staff) on the go includes information that must be divided and stored in a plurality of IC cards as follows, for example. (1) Information with a large amount of information that exceeds the storage capacity of a single IC card (video, map information, etc.) (2) Information with different managers (information managed by the customer and the public relations staff, the customer and the sales staff, etc.) (3) Information with different management methods (update frequency, usage frequency, information with different confidentiality, etc.) When a file storing the above-mentioned information is processed at a destination, conventionally, JP-A-62-280991, As described in JP-A-63-49953 and JP-A-1-205779, the following method has been adopted.

First, one IC card including a file storing information to be processed is selected, and the IC card is mounted on a computer (more precisely, an IC card reader). Then, the directory (file name, list showing file storage positions) stored in the card is displayed.
A file in which the information to be processed is stored is selected from among them, and the contents of the file are displayed. While confirming the display content, desired processing is added to the processing target information. If the information to be processed is stored in multiple files and the files are included in different IC cards,
Next, the IC card to be processed is selected and the same processing as above is repeated.

[0005]

Since the above-mentioned conventional technique does not consider the file management for a plurality of IC cards (storage media), it has the following problems.

(1) Since it is not possible to display a list of all files stored in a plurality of storage media that store information (data, programs) related to each other, it is possible to check the relationship between them and It is not suitable for the process of making a judgment after seeing the list display.

(2) A process involving a plurality of files, particularly a plurality of files stored in different storage media, for example, information stored in each of a plurality of existing files is partially collected and used as a new file. It is not suitable for processing such as registration.

(3) It is unsuitable for a process of storing (transferring) a file stored in a certain storage medium, or information stored in the file in another storage medium in some cases.

(4) It is unsuitable for a process of updating a file stored in another storage medium due to a change or deletion of information of a part of the file stored in the storage medium.

An object of the present invention is to provide a file management method and system for a plurality of storage media, which is easy for the user to use.

[0011]

A preferred embodiment of the present invention is a method of managing files stored in a plurality of storage media removable from a computer, which is configured as follows. A directory for managing files stored in each storage medium is stored in each storage medium. Then, at least two directories are stored in the storage device of the computer. The directory stored in the storage device is output to the output device.

[0012]

According to the preferred embodiment of the present invention described above, since a plurality of files stored in a plurality of storage media are displayed on the output device in the same manner, the files required for a series of processing are stored in a plurality of storage media. If present, it will be easier for the user to manage them.

[0013]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an apparatus according to the first embodiment of the present invention. The device configuration is such that the storage device 2, the output device 3, the input device 4, and the driver 5 are connected to the processing device 1, and further,
The storage medium 6 is removable from the driver 5.
Information for selecting a file is input from the input device 4. Although not essential to the present invention, as a matter of course, information (a program, data, etc.) stored in a file is also input from the input device 4. A display device is desirable as the output device 3. The storage device 2 stores various control tables and files for managing files. The driver 5 is called an IC card reader / writer when the storage medium is an IC card, and is called a storage control device or the like when the storage medium is another type.
It is a device for controlling reading and writing of information stored in a storage medium. It is more preferable that the driver 5 is a type of driver that can control a plurality of storage media, that is, that can mount a plurality of storage media at the same time and can read and write at the same time as seen by the user. It goes without saying that the storage medium 6 is not limited to the IC card and may be a floppy disk, a memory card, or the like.

Before describing the operation of the apparatus configuration shown in FIG. 1, a table configuration storing information necessary for the operation will be described. In the following description of the table structure and the display screen, for the sake of brevity, the area and the information stored or displayed in the area are not expressed separately, but it is possible to understand from the meaning. right.

FIG. 2 shows a block diagram of the storage contents of the storage medium 6. The storage contents are roughly divided into a medium name 61, a medium identifier 62, a directory 63, and a file 64. The medium name 61 is a name for the user to identify the storage medium 6 and is a character string. It may include symbols and numbers.

The medium identifier 62 is a code attached to the medium name 61, and is a number string or a character string that can be easily processed by the processing device 1. Since the medium identifier 62 is functionally the same as the medium name 61, only one of them may be provided.

The directory 63 is management information of files stored in the storage medium 6, and for each file, a flag 631, a file number 632, a file name 633, an address 634, a size 635 and an attribute 636.
Consists of.

The flag 631 indicates whether the file exists (1
Or 0). A value of 1 indicates that the file is stored in the storage medium 106, and a value of 0 indicates that the file is not stored in the storage medium 106. It should be noted that the case of 0 means that the file does not logically exist, and as a substance, the file may remain without being erased.

The file number 632 is a serial number given to each file in the order of registration in the storage medium 6.

The file name 633 is a name uniquely given to each file by the user. Generally, it is given as a character string, but it may include symbols and numbers.

The address 634 is the start address of the area where the file is stored. In FIG. 2, a file having a file number of “1” and a file name of “file α” is stored with “1000 address” as the start address. However, the address 63
The value of 4 depends on the access method of the storage medium 6, and is a byte unit, a sector unit, a track unit, or the like. In Figure 2,
It is shown based on byte units.

The size 635 represents the size of the file. The file size 635 also depends on the access method of the storage medium 6, and is in byte units, sector units, track units, or the like. However, the value of the size 635 does not always represent the actual size of the file. In many cases, the value is larger than the actual size depending on the management method of the storage area of the storage medium 6 (for example, management in units of 256 bytes).

The attribute 636 mainly indicates whether the content stored in the file is a program or data, and whether the data is code data such as character string data or image data such as an image depending on the case. Although it represents the type of data stored in the file, it may be other information representing the characteristics of the data stored in the file. The attribute 636 is information that can be rewritten by the user like the file name 633.

As can be seen from the above, FIG.
“File α”, “File β” and “File γ” are stored in the
Since the value of 1 is "0", it indicates that it is invalid.

FIG. 3 shows the management information area 20 shown in FIG.
Shows the configuration of. Management information area 20 is number 2
1, medium name 22, medium identifier 23, file number 2
4, each information of the file name 25, the address 26, the size 27, the attribute 28 and the operation 29 is stored corresponding to the file stored in the file area 21.

Among these pieces of information, the medium name 22, medium identifier 23, file number 24, file name 25 and attribute 28 are stored in the storage device 6 when the file is stored in the file area 21 from the storage device 6. It is the same as what is described. Address 26 and size 27 are
If the management information area 20 and the storage device 6 have the same storage area management method and access method, the contents may be the same as the contents stored in the storage device 6, but in general, the value of the address 26 is offset. There is. If they are different, they are converted according to the difference between the storage area management method and the access method.

Other information is as follows. Number 21 is
It is a serial number given to each file in the order stored in the management information area 20. The operation 29, which will be clarified later in the description of the operation of this embodiment, includes the management information area 2
This indicates the type of operation performed by the user on a file managed by using 0, in other words, a file stored in the file area 21.

A specific example shown in FIG. 3 will be selected and described. The number 21 is “1”, that is, the first stored file is a file including the code data of the file number “1” and the file name “file α” stored in the storage medium 6 of the medium A (medium identifier a). And is stored in an area having a length of 400 bytes from the address 5000 of the file area 21. The file whose number 21 is “n” is the medium I
It is a file having the file number “2” and the file name “file 2i” stored in the storage medium 6 of (medium identifier i), and is 50 from the address 7300 of the file area 21.
It is stored in an area of 0 byte length.

It should be noted that FIG. 1 shows a plurality of storage media 6 of the same type.
On the other hand, although one driver 5 is shown to read and write data, the storage medium 6 is not always the same type. In that case, it goes without saying that the driver 5 must be provided according to the type of the storage medium 6. In such a case, the file management method of the storage medium 6 shown in FIG. 2 may be different from the method described with reference to FIG. 2, but in the program that supports the operation of the driver 5, the data format, etc. It is easy for a person skilled in the art to infer that the processing for converting the?

Next, the operation of the present embodiment will be described with reference to the flow charts of FIGS. 4 and 5 showing an example of the screen of the output device 3. The screen example shown in FIG. 4 represents the screen after the data such as the directory 63 is read from the plurality of storage media 6 into the management information area 20 or the like of the storage device 2.

A display area 31 for outputting the contents of the management information area 20 is displayed on the screen of the output device 3 shown in FIG. 4, and the contents of the management information area 20 are edited although not shown in FIG. Therefore, a display area 32 for outputting the contents of the work area provided in the storage device 2 and icons 330 to 340 indicating the function (operation) provided to the user are displayed. Although it is not always necessary to display the display areas 31 and 32 at the same time, it is easier for the user to display the display areas 31 and 32 at the same time by using the multi-window and screen division functions of the output device 3. In this embodiment, a system will be described in which a window is provided corresponding to a display area by using the multi-window function.

The icon and the process associated with its selection will be described. “Create” 330 is used when creating a new file. When "Create" 330 is selected by the user (step 501), the computer 1 enters the file input state (step 502). The user newly creates a file in the file area 21 of the storage device 2 and inputs information necessary for creating a directory. The method of creating a file by the user has little relation to the essence of the present invention, and various known file creating methods may be used, and a description thereof will be omitted. The information necessary for creating a directory is a medium name, medium identifier, file name, and attribute. A directory is created in the management information area 20 of the storage device 2 based on the input of these pieces of information (step 503). The directory is created by storing, in the management information area 20, the address and size at which the file created by the user is stored together with the information input by the user. In order to create the table format of FIG. 3, the number 21 and the file number 24 are insufficient with the above information alone. Since the number 21 is the sequence number stored in the management information area 20, the value obtained by adding 1 to the largest sequence number may be stored. As a matter of course, if the file is created without any file in the storage device 2, the value of the number 21 is 1. The file number 24 is the medium name 22 in the management information area 20.
Alternatively, the column of the medium identifier 23 is checked to see whether or not there is one designated by the user. If there is, it is 1 for the largest file number in the files of the medium name.
The value added with is the file number of the newly created file. The created file and its directory are stored in the designated storage medium according to the selection of the icon “WRITE” described later.

The "transfer" 331 is used when copying or moving a file stored in a certain storage medium 6 to another storage medium 6. Here, copying means a process of not erasing the file stored in the transfer source storage medium after the transfer, and moving means a process of erasing the file after the transfer. It should be noted that copying or moving is based on an input from the user, but description of the input will be omitted. The user
Prior to the selection of “Transfer” 331, the storage medium 6 storing the file to be transferred is attached to the driver 5, and the icon and “READ” described later are used to change the files and directories stored in the storage medium. Storage device 20
Read into. The read directory is displayed in the display area 31. In response to the selection of "transfer" 331 (step 505), the transfer destination storage medium name is entered (step 506). The transfer destination storage medium name input by the user is stored in the work area in the storage device 2 as displayed in the medium name column of the display area 32 in FIG. Next, the file name designation input state is entered (step 507). The input by the user to specify the file name is made by inputting a character string from the keyboard which is the input device 4 or selecting input from a pointing device such as a mouse. Although not shown, the input from the keyboard is performed by a known method of inputting in a predetermined input area. The selection input is in the display area 31.
It is assumed that the file name of the line picked up in response to that is specified by picking the line containing the file name displayed in the. The specified file is transferred in response to the completion of the file name input (step 5).
08). In reality, the directory of the designated file is copied from the management information area 20 to the work area. Corresponding to this copying, the directory of the copied file is displayed in the display area 32. If file movement is designated here, the directory of the designated file is deleted from the management information area 20. Along with this deletion, the corresponding directory is also deleted from the display area 31. When copy is designated, the erasing process from the management information area 20 and the display area 31 is not executed. After this, "switch" 338 and "WRI" which will be described later
The TE ”340 can be used to transfer the specified file to the specified storage medium 6.

“Merge” 332 is a single storage medium 6 that stores a plurality of files stored in a plurality of storage media 6.
Used to transfer to. The execution of the “merge” 332 is such that a plurality of files are sequentially transferred when viewed from the processing level in the processing device 1, but they are collectively processed when viewed from the user level. Prior to selecting “Merge” 332, the user selects “REAM” from the contents of the storage medium 6 storing the files to be merged.
Select "D" 339 and enter. The input contents are stored in the management information area 20 as shown in FIG. 3 and displayed in the display area 31. In response to the selection of "merge" 332 by the user (step 510), the output storage medium name is entered (step 511). The operation of step 511 is similar to the operation of step 506. The difference is that the storage and display of the medium name in the work area and the corresponding display area 32 are executed for each file to be transferred (step 512). Subsequently, the directories of the designated files of the plurality of storage media 6 are copied to the work area. Corresponding to copying to the work area, the copied directory is displayed in the display area 32. Also in this case, the directory transfer is actually executed between the management information area 20 and the work area as in the case of the above-mentioned “transfer” 331. After that, the merged file is stored in the storage medium 6 designated according to the selection input of the “WRITE” 340.

"Search" 333 is used to search for a specific file designated by the user. For example, it is used when searching for a file in which the first two letters of the file name are the same. It is also used when searching for files with the same attributes. As a method by the user, a character string to be specified may be input from a keyboard which is one of the input devices 4, or a character string displayed on the screen may be displayed by using a mouse as another input device 4. You may specify. In addition, prior to the selection input of “Search” 333,
The contents of the storage medium 6 to be searched are read into the storage device 2 by "READ" 339.

"Change" 334, "delete" 335, "↑"
The selection input of (upward arrow) 336 and “↓” (downward arrow) causes the user to instruct the operation on the file in the storage device 2 after reading the contents of the storage medium 6 into the storage device 2 by “READ” 339. It is prepared for.

The selection input of the "change" 334 is performed (step 5
15) according to the change input by the user (step 51
6) Used when changing the contents of the display area 31 or 32, that is, when performing so-called editing. As a matter of course, as the display content of the screen is changed, the corresponding data in the storage device 2 is also changed.

The selection input of "Delete" 335 is performed (step 5
20) in response to the deletion input by the user (step 52)
1) Used when deleting a certain file or deleting attribute data of a certain file. As one of the editing functions, the function associated with the "delete" 335 may be executed as the process of the "change" 334. However, in this embodiment, it is considered that the operability of the user is excellent. Is provided and the corresponding processing is also separated.

"↑" (upward arrow) 336 and "↓"
Select input (down arrow) (steps 525, 530)
Is used when the display area 31 or 32 is scrolled (steps 526 and 531). Since the size of the display area is determined by the screen size and character size of the output device 3, the number of display lines may be less than the number of files to be displayed. These icons are provided to deal with such a case. It should be noted that the display area can be scrolled.

Select input of "switch" 338 (step 53)
Since 5) is based on the assumption that the multi-window function is used in the present embodiment as described above, 5) is displayed in front when the two display areas (31, 32) on the screen overlap. It is used to switch the display area between windows 31 and 32 (step 536).

"READ" 339 is used to read the contents of the storage medium 6 into the storage device 2. "WRIT"
The “E” 340 is used to write the contents of the storage device 2 into the storage medium 6. "READ" 339 or "WR
By selecting "ITE" 340 (steps 545, 550), the contents (data) transferred between the storage medium 6 and the storage device 2 (steps 546, 551) are input by the user following selection of the icon. It

As described above, according to this embodiment, the directories of the files stored in the plurality of storage media are collectively stored in the storage device and displayed on the screen, so that the user can easily operate the related files. ..

Next, a second embodiment will be described. For example,
When the foreign resident visits the customer A, the foreign resident needs the customer information and the map information about the customer A at the same time. Customer information needs to be updated frequently, but map information rarely needs to be updated. In addition, the customer information must be given high priority on confidentiality, but the map information is general-purpose, has a wide range of use, and is frequently used. As described above, it is necessary to store and manage information of different management methods in different storage media.

First, the device configuration diagram shown in FIG. 6 will be described.
In addition to the configuration of the first embodiment, the computer 1 inputs the visit order customer and the map file designation from the user and stores them in the work file area 117. The visit order customer, the map designation input program 822, and the designation. File sorting program 82 for sorting the sorted files in order of visit
Have 3.

The storage device includes a work area 117, a general directory file area 118 (same as the management information area 21 of the first embodiment), a visit directory area 827 for storing a visit directory, and a display visit for storing a display visit directory. It has a directory area 828.

The storage media 806 and 811 are directories for customer information file 1 (808), customer information file 2 (809), customer information file 3 (810) and customer information file, respectively. File 807 and map information file 1
(813), map information file 2 (814), map information file 3 (815) and map information directory file 812 which is a directory of map information files.
have. The customer information directory file format is shown in FIG. 7, and the map information directory file format is shown in FIG. On the surfaces of the storage media 806 and 811, symbols K1 to K for identifying the media by the user are provided.
3. Mark C1 to C3.

The storage medium 829 stores a visiting directory 830 indicating the storage locations of files arranged in the order of visiting.

The customer information directory file format 901 of FIG. 7 and the map information directory file format 1001 of FIG. 8 are composed of a medium name 202, medium identifiers 203, F204, N205, a file start address 207, and a file size 208. ..

Further, FIG. 7 shows a file name 206 representing the name of a customer information file and an attribute 9 representing the customer's map position.
With 09. FIG. 8 has a file name 206 indicating the name of a map information file and an attribute 1009 indicating the map range.

The general directory file display screen layout 1101 of FIG. 25
02, data file name 2 which is the name of the data file
503, a medium identifier 2504 for identifying a medium, and scrolls 2505 and 2506. Further, the selection field 1102 receives a file selection input from the user, and the customer information file includes a customer map position, and the map information file includes an attribute field 1103 indicating a map range.

The visited directory file display screen layout 1201 of FIG. 10 is obtained by sorting and displaying the files shown in FIG. 9 in the order of visit.

The operation of this embodiment will be described below with reference to the processing flow of FIG.

First, the customer file 1 is stored in the storage medium 806.
(808), customer file 2 (809), customer file 3 (810), storage medium 811 to map file 1 (8
13), map file 2 (814), map file 3
The file management information of (815) is read. Then, the customer information directory file 901 shown in FIG. 7 and the map information directory file 100 shown in FIG.
1 is created (step 1301).

Customer directory file 901 created
In the customer information directory 807 of the storage medium 806,
The map directory file 1001 is stored in the map information directory 812 of the storage medium 811 (step 1
302).

Step 130 for all storage media
1 to 1302 are repeated (step 1303). With the above procedure, the creation of the customer and map directory file is completed. The procedure for collectively storing the created directory files in the storage device 2 will be described below. First, the customer directory file 807 and medium identifier in the storage medium 806, and the map directory file 812 and medium identifier in the storage medium 811 are read and stored in the general directory file area 118 of the storage device 2 (step 1304). Step 1 for all storage media
Repeat 304 (step 1305).

By the above, the directories of all files can be stored in the storage device 104 at once. The procedure for outputting this directory to the output device 103 will be described below. The display directory file creation program edits the general directory file (step 13
06), and the summary directory file display screen 1101 shown in FIG. 9 is displayed (step 1307).

As described above, the general directory of all files can be displayed on the screen. The procedure for inputting a visit file selection from the user and creating a visit directory containing only visit files will be described below. When the user visits, he or she carries storage media 806, 811, 829 storing the visited directory and data files. At the destination, the visiting directory 830 is displayed on the screen, and the visiting order and the data file position are confirmed. The visit order customer / map designation input program 822 inputs the visit order customer designation and map selection from the user from the input device 4 and stores them in the work file area 117 of the storage device 2 (step 1308).

The file sort program 823 sorts the general directory files 301 in the order of visit and stores them in the visited directory area 827 (step 130).
9). The visit directory 827 sorted in the order of visits is the visit directory file 83 of the visit storage medium 829.
It is stored in 0 (step 1310).

When it is desired to browse the visiting order, the visiting directory file 830 is read from the visiting storage medium 829 and stored in the visiting directory area 827 of the storage device 2 (step 1311). Further, the visiting directory file 827 of the storage device 2 is edited (step 13
12) It is displayed on the visited directory file display screen 1201 (step 1313).

Visit directory 82 in step 1310
7 is stored in the visit storage medium 829, it may be stored in the customer information storage medium 806 or the map information storage medium 811.

It is not necessary to move or copy the necessary files while they are stored in one place on the storage medium. Therefore, the confusion of the user can be prevented.

The created visit directory is a search result in which a file required for the purpose of the user's visit is selected. Considering in this way, the present embodiment has the effect of displaying the search results on the screen. Further, it is more effective to prepare a plurality of search results and refer to the file stored in one place of the storage medium for various purposes. Multiple search results may be merge sorted.

[0064]

According to the present invention, since a plurality of files stored in a plurality of storage media are displayed on the output device in the same manner, when files necessary for a series of processing exist in a plurality of storage media, It makes it easier for users to manage them.

[Brief description of drawings]

FIG. 1 is a device configuration diagram of a first embodiment of the present invention.

FIG. 2 is a configuration diagram of stored contents of a storage medium according to the first embodiment.

FIG. 3 is a diagram showing a configuration of a management information area 20 according to the first embodiment.

FIG. 4 is a diagram illustrating an example of a screen of the output device according to the first exemplary embodiment.

FIG. 5 is a flowchart executed by the processing device according to the first embodiment.

FIG. 6 is a device configuration diagram of a second embodiment.

FIG. 7 is a customer information directory file format according to the second embodiment.

FIG. 8 is a map information directory file format according to the second embodiment.

FIG. 9 is a general directory file display screen layout in the second embodiment.

FIG. 10 is a layout of a visiting directory file display screen according to the second embodiment.

FIG. 11 is a flowchart executed by a computer according to the second embodiment.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tsutomu Tashiro, 1099, Ozenji, Aso-ku, Kawasaki, Kanagawa, Kanagawa, Ltd. System Development Laboratory, Hitachi, Ltd. (72) Akihiro Kawaoka, Inventor, 1099, Ozenji, Aso-ku, Kawasaki, Kanagawa Company Hitachi, Ltd. System Development Laboratory (72) Inventor Akira Kagami 1099 Ozenji, Aso-ku, Kawasaki City, Kanagawa Stock Company Hitachi Ltd. System Development Laboratory (72) Inventor, Tsuyoshi Hamaguchi 12 at 890 Kashimada, Kawasaki City, Kanagawa Prefecture Information Systems Development Division, Hitachi, Ltd.

Claims (20)

[Claims] 1. A method for managing files stored in a plurality of storage media removable from a computer, wherein each of the storage media manages a file stored in each storage medium. And storing at least two directories in a storage device included in the computer, and outputting the directories stored in the storage device to an output device included in the computer. 2. The file management method according to claim 1, wherein the directory stored in the storage device is stored in a storage medium removable from the computer. 3. The file management method according to claim 2, further comprising storing the directory stored in the removable storage medium in the storage device. 4. The file management method according to claim 2, wherein the storage medium for storing the directory is one of the plurality of storage media. 5. The file management method according to claim 2, wherein the storage medium storing the directory is a storage medium other than the plurality of storage media. 6. The file management method according to claim 1, wherein when changing the directory of at least one of the plurality of storage media, the directory stored in the storage device is changed according to the change. File management method characterized by. 7. The file management method according to claim 1, further comprising inputting a file selection for the directory output to the output device from an input device included in the computer, and setting the plurality of files of the plurality of storage media to the plurality of files. A file management method comprising storing in a storage device included in a computer, and storing the plurality of files stored in the storage device in a storage medium removable from the computer. 8. The file management method according to claim 1, further comprising: inputting a file editing instruction to the directory output to the output device, and corresponding to the instruction, storing a necessary file in the storage medium. A file management method characterized by further searching and storing in the storage device. 9. The file management method according to claim 8, further comprising creating a directory for the file and storing the directory in the storage device. 10. A computer having a plurality of storage media for respectively storing files and directories for managing the files, and a computer having a mechanism for mounting each of the plurality of storage media.
A storage device connected to the computer for storing at least two directories in a lump, and an output device connected to the computer for outputting the directory of each of the storage media stored in the storage device A file management system comprising: 11. The file management system according to claim 10, further comprising a removable storage medium for storing the directory stored in the storage device in the computer. .. 12. The file management system according to claim 11, wherein the storage device stores the directory stored in the removable storage medium. 13. The file management system according to claim 11, wherein the storage medium for storing the directory is one of the plurality of storage media. 14. The file management system according to claim 11, wherein the storage medium storing the directory is a storage medium other than the plurality of storage media. 15. The file management system according to claim 10, wherein when changing the directory of at least one of the plurality of storage media, the directory stored in the storage device is changed according to the change. Characteristic file management system. 16. A computer having a mechanism for mounting each of a plurality of storage media storing a file and a directory for managing the file, and a computer connected to the computer to collectively store the directories of each of the storage media. And a storage device for storing the file. 17. The file management system according to claim 16, further comprising an output device which is connected to the computer and which outputs the directory of each of the storage media stored in the storage device. And file management system. 18. The file management system according to claim 16, further comprising a removable storage medium for storing the directory stored in the storage device in the computer. .. 19. The file management system according to claim 16, wherein the storage device is a storage medium removable from the computer. 20. The file management system according to claim 16, wherein the storage medium is an IC card.