SCSI for Fast Disk Access

Small Computer System Interface (SCSI) is a set of standards for physically connecting and transferring data between computers and peripheral devices. Reference Wikipedia

SCSI interfaces provide for faster data transmission rates (up to 80 megabytes per second) than standard serial and parallel ports. In addition, you can attach many devices to a single SCSI port, so that SCSI is really an I/O bus rather than simply an interface. Reference webopedia

Other technologies, like serial-ATA (SATA), have largely replaced SCSI in new systems. Newer SATA drives tend to be faster and cheaper than SCSI drives. Reference HowStuffWorks

So SCSI seems to be a good choice for super fast access to hard drives.

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