JPS6149229A - Information processor - Google Patents

Abstract

PURPOSE:To perform the recording and reproducing actions at a high speed by using a buffer memory having the memory capacity equal to an integer multiple as much as a sector and the data reading and writing actions for each memory capacity of said buffer memory. CONSTITUTION:A floppy disk drive part 11 is connected to a disk controller 6 via a floppy disk interface part 9 of said controller 6. A buffer memory device 10 having the memory capacity equal to an integer multiple as much as a sector is added to the controller 6. Then data are stored and reproduced for sectors every memory capacity of the device 10. The data are immediately transferred to a requester from the device 10 with no shift of an actuator as long as the data on a desired sector is stored in the data stored in the device 10 when the preceding data are reproduced. Thus an access action is attained at a high speed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an information processing device such as a magnetic disk used as an external storage device of a computer system, for example.

[Prior art]

A conventional device of this type is shown in FIG. In the figure, l is a flexible disk (hereinafter referred to as a disk), 2 is a track obtained by dividing this disk into a plurality of parts in the radial direction, 3 is a sector obtained by dividing the track 2 into a plurality of parts in a circumferential direction, 4 is an actuator, and 5 is an actuator 4 This is a magnetic head mounted on.

Next, the operation will be explained. When reading the stored contents of any sector 3 on the disk 1, the magnetic head 5 mounted on the actuator 4 is moved to the upper hair actuator 4 of the track 2 where the sector 3 to be read exists.
Then, the magnetic head 5 sequentially reads the contents of the address part of the corresponding sector 3, and if the read contents match the contents of the address information of the sector 3 to be actually read, the corresponding sector 3 is moved. Read the data part of.

The same applies to the case where data is old for an arbitrary sector 3.

However, the conventional control device that controls such storage/reproduction operations determines the movement time of the actuator 4, the settling time of the magnetic head 5, and the target sector 3 for each operation of reading or writing data from any one sector. Since a rotational waiting time is required before detection, there is a drawback that the storage/reproduction operation becomes slow.

[Summary of the invention]

The present invention has been made in order to solve the above-mentioned drawbacks of the conventional devices, and its purpose is to provide an information processing device that can perform storage/reproduction operations at high speed.

To this end, the present invention provides a panzer memory device having a storage capacity that is an integral multiple of the storage capacity of a sector, and performs data storage and reproduction operations in a plurality of sectors in units of storage capacity of this panzer memory device. It is something.

[Embodiments of the invention]

Hereinafter, the present invention will be explained based on examples. FIG. 1 is a block diagram showing an embodiment of an information processing apparatus according to the present invention. In the same figure, 6 is a disk control device, 7 is a CPU
8 is a controller section, 9 is a floppy disk ink face section, 10 is a buffer storage device, and 11 is a floppy disk drive section.

Next, the operation will be explained.

Disk 1 attached to floppy disk drive unit 11
To read the stored data of any sector 3 in
First, it is checked whether the data stored in the target sector has been previously read in the buffer storage device 10, and if it has been read, the data is transferred from the data section corresponding to the target sector in the buffer storage device 10 and the operation is completed. do.

However, if the stored data 4 of the target sector is not detected in the buffer storage device 10, the actuator 4 and the magnetic head 5 are moved to the track 2 where the sector 3 to be read exists, as in the conventional operation. Next, the magnetic head 5 sequentially reads the contents of the address part of the sector 3 on the track 2 to detect the target sector 3. When the target sector 3 is detected, the data stored in the plurality of sectors 3 is successively read and transferred to the buffer storage device 10, unlike the conventional method. Thereafter, data is transferred from the data section corresponding to the target sector 3 of the buffer storage device 10 to the data request source, and the operation is completed.

As described above, in the present invention, if the data of the target sector is stored in the data read during the previous data reproduction operation and stored in the puffer storage device W10, the actuator 4 is moved. Instead, data in the target sector is immediately transferred from the buffer storage device 10 to the request source. Therefore, the buffer storage device 10
If the storage capacity of the buffer storage device 10 is set to a certain level, there will be no need to drive the actuator 4 each time, and as the storage capacity of the buffer storage device 10 increases, random read or write requests will be It is also possible to achieve high-speed access operation.

In the above embodiment, the case of a flexible disk has been described, but a cartridge disk or other disk device may be used, and the same effects as in the above embodiment can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, a buffer storage device having a storage capacity multiple times that of a sector is provided, and data is read and written in units of the storage capacity of the buffer storage device, so that high-speed reading and writing is possible. There is an effect that it can be done.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an information processing apparatus according to the present invention, and FIG. 2 is a perspective view showing a schematic structure of a flexible disk. 1...Flexible disk, 2...Track, 3
... Sector, 8... Controller, 10... Buffer storage device.

Claims (2)

[Claims] (1) Information processing in which a storage medium is divided into a plurality of storage tracks in the radial direction, each of these storage tracks is further divided into a plurality of storage sectors in the circumferential direction, and information is stored and reproduced in units of storage sectors. The apparatus includes a buffer memory device having a storage capacity that is an integral multiple of the storage capacity of the storage sector, and a controller that controls information storage and reproduction operations in the plurality of storage sectors in units of storage capacity of the buffer memory device. An information processing device characterized by: (2) Claim 1, characterized in that the storage medium consists of a disk-shaped magnetic disk that magnetically stores information.
The information processing device described in the section.