enhanced small disk interface การใช้

"' Enhanced Small Disk Interface "'( "'ESDI "') was a disk interface designed by Maxtor Corporation in the early 1980s to be a follow-on to the ST-412 / 506 interface.
Enhanced Small Disk Interface ( ESDI ) was an attempt to minimize controller design time by supporting multiple data rates with a standard data encoding scheme; this was usually negotiated automatically by the disk drive and controller; most of the time, however, 15 or 20 megabit ESDI disk drives were not downward compatible ( i . e . a 15 or 20 megabit disk drive would not run on a 10 megabit controller ).
Enhanced Small Disk Interface ( ESDI ) also supported multiple data rates ( ESDI disks always used 2, 7 RLL, but at 10, 15 or 20 megabits per second ), but this was usually negotiated automatically by the disk drive and controller; most of the time, however, 15 or 20 megabit ESDI disk drives were not downward compatible ( i . e . a 15 or 20 megabit disk drive would not run on a 10 megabit controller ).