JPH03219461A - Compatible floppy disk device - Google Patents

Abstract

PURPOSE:To use a different size floppy disk by providing a size sensor, a size accepting part, a data read part and a write part. CONSTITUTION:A disk is fixed by the size accepting part 2 with a built-in device in accordance with information of the sensor 1 and a movable header is moved. At this stage, the read part 3 and the write part 4 of file data become workable, giving and receiving a data with a storage holding part 5. A file prospectus stored in the storage holding part 5 is displayed by a CRT 6. By this constitution, any size floppy disk can be used. In addition, a copy and comparison between floppy disks in different size from each other are made by using two sets of the devices 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an operation method of an external storage device which is a peripheral device of a computer, and particularly relates to a floppy disk device.

[Conventional technology]

In the conventional operating system of floppy disk devices, when using 8-inch and 5-inch floppy disk storage media (hereinafter referred to as floppy disks), an 8-inch floppy disk is a 8-inch sized floppy disk. A 5-inch floppy disk was used, and a 5-inch floppy disk device was used. In other words, it was necessary to use a floppy disk device specifically designed for the size of the floppy disk being used.

[Problem to be solved by the invention]

Therefore, in the conventional floppy disk operating system, the size of usable floppy disks is fixed, so floppy disks of different sizes cannot be used in the same floppy disk device. Another drawback is that it is not possible to copy or compare floppy disks of different sizes by using two floppy disk devices of the same size.

SUMMARY OF THE INVENTION An object of the present invention is to provide a compatible floppy disk device that eliminates the above-mentioned drawbacks and allows use of floppy disks of different sizes in one floppy disk device.

[Means to solve the problem]

The present invention is a compatible floppy disk device that can use floppy disks of different sizes, comprising: a floppy disk size sensor that senses the size of the floppy disk; a floppy disk size corresponding part that corresponds to the size of the floppy disk; The present invention is characterized by having a file data read section that operates by the floppy disk size correspondence section and reads a file booter of the floppy disk, and a file data write section that operates by the floppy disk size correspondence section and writes file data to the floppy disk. shall be.

[Example] Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a circuit block diagram showing one embodiment of the present invention.

This compatible floppy disk device 7 is composed of a floppy disk size sensor 1, a floppy disk size corresponding section 2, a file data reading section 3, a file data writing section 4, and a memory holding section 5. The section 5 is connected to a cathode ray tube device (CRT device) 6.

A floppy disk size sensor 1 senses the size of a floppy disk set in a floppy disk device, and transmits floppy disk size information to a floppy disk size correspondence section 2.

The floppy disk size corresponding section 2 adjusts the movable floppy disk fixing device provided inside the floppy disk size corresponding section 2 to the floppy disk size based on the floppy disk size information transmitted from the floppy disk size sensor 1. move in response to
Fix the floppy disk size. Then, the movable header in the floppy disk size compatible section 2 is moved. At this stage, the file data read section 3
and the operation of the file data write unit 4 becomes possible.

The file data reading unit 3 reads file data stored in the floppy disk and transfers the read file data to the storage holding unit 5.

The file data write section 4 writes the file data stored in the memory holding section 5 onto a floppy disk.

The memory holding unit 5 temporarily stores the file data transferred from the file data reading unit 3. It also temporarily stores the data to be written and transfers it to the file data write unit 4.

The CRT device 6 displays the data from the file data reading section 3, that is, the file data stored in the memory holding section 5. The displayed file data is, for example, a file list.

Next, the operation of this embodiment will be explained. A case will be described in which file data on an 8-inch floppy disk is copied to a 5-inch floppy disk using a floppy disk device equipped with two compatible floppy disk devices. Here, one floppy disk device is referred to as unit 1, and the other floppy disk device is referred to as unit 2.

When an 8-inch floppy disk is set in the unit 1, the floppy disk size sensor 1 recognizes the size of 8 inches and transmits information on the size of the floppy disk to the floppy disk size corresponding section 2.

Therefore, we set this size to floppy disk size compatible section 2.
to communicate.

The floppy disk size correspondence section 2 corresponds to the size of the floppy disk based on the floppy disk size information transmitted from the floppy disk size sensor 1. That is, a movable floppy disk fixing device provided inside the floppy disk size compatible section 2 is moved to fix the size of the floppy disk to a size corresponding to an 8-inch floppy disk. Then, the file data read section 3 and file data write section 4 can operate. As a result, the unit 1 becomes an 8-inch floppy disk device.

Next, when a 5-inch floppy disk is set in unit 2, the compatible floppy disk device performs the same processing as in unit 1. In other words, the floppy disk size sensor 1 recognizes the 5-inch size, and the floppy disk size corresponding section 2 moves the floppy disk fixing device of the floppy disk size corresponding section 2 to correspond to the 5-inch floppy disk. is fixed at 5 inches, and the file data read section 3 and file data write section 4 can operate. As a result, the unit 2 becomes a 5-inch floppy disk device.

8 inch and 5 inch floppy disks are unit 1. When set in the unit 2, the file data in the 8-inch floppy disk of the unit 1 is read into the file data reading section 3 and transferred to the storage holding section 5. Then, the file data write section 4 writes the data stored in the memory holding section 5 to the 5-inch floppy disk, and the file data on the 8-inch floppy disk in unit 1 is transferred to the 5-inch floppy disk in unit 2.
Copied to an inch floppy disk.

Further, file list data of files copied from 8-inch to 5-inch floppy disks is sequentially transferred from the memory holding section 5 to the CRT device 6 and displayed.

As explained above, in the compatible floppy disk device of the present invention, when a floppy disk is set in the floppy disk device, the floppy disk size sensor senses the size of the floppy disk, and the floppy disk size corresponding section is set according to the detected size. When the file data read section and file data write section become operational according to the size of the floppy disk set, the file data read section reads the file data from the set floppy disk and transfers it to the storage section where it is temporarily stored. Retained. Further, the file data held in the memory holding section is sequentially sent to the CRT device and displayed on the CRT.

〔Effect of the invention〕

As explained above, in the present invention, when a floppy disk is set in a floppy disk device, the size of the floppy disk is sensed and processing corresponding to that size is performed, so that any size floppy disk can be used. effective.

Furthermore, by using two floppy disk devices, it is possible to copy and compare floppy disks of different sizes.

[Brief explanation of drawings]

FIG. 1 is a circuit block diagram showing one embodiment of the present invention. 1... Floppy disk size sensor 2... Floppy disk size compatible section 3... File data read section 4... File data write section 5... Memory holding section

Claims (1)

[Claims] (1) A compatible floppy disk device that can use floppy disks of different sizes, including a floppy disk size sensor that detects the size of the floppy disk, and a floppy disk size corresponding to the above-mentioned size of the floppy disk. a file data read section that operates by the floppy disk size correspondence section and reads file data from the floppy disk; and a file data read section that operates by the floppy disk size correspondence section and writes file data to the floppy disk. A compatible floppy disk device characterized by having a write section.