Magnetic Disk Storage System: Difference between revisions
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Revision as of 01:18, 3 September 2018
Magnetic Disk Storage System
Magnetic storage is a non-volatile storage of data.
The magnetic disk is a successor to magnetic tape. There are lot of common things: encoding, tracks, gaps, marks, etc. The magnetic tape is sequential media, but the disk is (quasi-)random access media.
A magnetic disk storage system practically divided into three part:
- Disk controller
- Disk drive
- Disk(s)
There are two main magnetic disk storage system:
- Fixed disk or Hard disk - disks are not removable
- Floppy disk - disk is removable, the medium is changeable in the drive
Floppy disk storage
The parts of the system:
- Floppy Disk Controller (FDC) - a high level interface between the CPU and the disk drive
- Floppy Disk Drive (FDD) - the low level device for performing basic operations
- Floppy Disk - the storage medium itself