What is SCSI?

SCSI (Small Computer System Interface) technology allows you to attach various internal and external devices to a single controller card in your computer. SCSI hardware is often used in high-end PCs and server computers because of its greater flexibility and faster performance when compared to other Input/Output (I/O) technologies.

A typical SCSI configuration consists of the following items:

• A SCSI host adapter (or controller) that plugs into a slot in your computer's motherboard.
• Internal and/or external SCSI devices (such as hard drives, CD-ROM, DVD, scanner).
• Internal and/or external SCSI cables, SCSI terminators, and possibly SCSI cable adapters.

Careful selection of SCSI hardware is necessary to ensure proper operation. The following information should help you get started in configuring your SCSI-enabled computer. You should also check your SCSI device documentation for special requirements.

• What is SCSI?
• General SCSI Specifications
• What is an SCA / RAID connector?
• Types of SCSI Signals
• Rules for Connecting SCSI Devices

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