This was a popular form of hard drive and controller interface before IDE took over the PC market.
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"A drive controller type that utilizes a hard drive as a slave unit. ESDI controllers generally drive only two disk drives and have an on-board processor to translate drive geometry, manage I/O requests, and provide caching." Read More at High-density.com
A hard disk interface that transfers data in the one to three MByte/sec range. ESDI was the high-speed interface for small computers for a while, but has been superseded by IDE and SCSI drives.
Enhanced System Device Interface. Serial HDD 10 m/s/bit
Enhanced Small Device Interface. A popular hard disk, floppy disk, and tape drive interface standard, capable of a data transfer rate of 10 to 20 megabits per second. ESDI is most often used with large hard disks. enhanced television Combines standard television with HTML information related to programs.
Enhanced Small Device Interface. Disk connection interface. The SDSI standard is replacing ESDI.
Is an Enhanced Small/System Device Interface.
Enhanced Small-Device Interface. One type of hard drive specification for IBM PC and compatible computer.
Enhanced Small Device Interface ESDI is a high-performance hard drive interface for PCs that was popular a few years ago, but is quickly disappearing.
enhanced small device interface. A standard that can be used with high-capacity hard disks, floppy disk drives, and tape drives to allow these devices to communicate with a computer at high speeds.
n. Acronym for Enhanced Small Device Interface. A device that allows disks to communicate with computers at high speeds. ESDI drives typically transfer data at about 10 megabits per second, but they are capable of doubling that speed.