what is a drive controller?
Answers
Explanation:
Disk drives store data on a physical disk covered with magnetic material. In order for any device on the system to access the disk, (such as the RAM, processor etc.), there must be some coordination.
The drive controllers manage this, and all basic mid-level disk access functions. Most personal computer disk drives are smart enough now to do their own reading and writing and even caching of data to speed up access.
On a mainboard there is usually a socket for the floppy drive, a socket for EIDE ATA drives and/or a socket for SCSI drives. Often, the SCSI controller is on a separate adapter card.
DRIVE CONTROLLER TYPES
FLOPPY DISK - AKA 'flexible disk'
5.25" - 640kb (ancient) or 1.25 Mb (not quite as ancient)
3.5" (most common)
FIXED DISK
ATA
SATA
IDE / EIDE
UDMA 33
UDMA 66
UDMA 100
UDMA 133
SCSI
Wide
Ultra-Wide
Answer:
The disk controller is the controller circuit which enables the CPU to communicate with a hard disk, floppy disk or other kind of disk drive. Also it provides an interface between the disk drive and the bus connecting it to the rest of the system.