SCSI : Java Glossary

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©1996-2017 Roedy Green of Canadian Mind Products

SCSI
SCSI (Small Computer System Interface). A way of hooking up disks, tapes, scanners, cd-roms etc. to a small computer. SCSI shines over IDE (Integrated Development Environment) when you have a server with many disks running at once, since it allows overlapped operation of many different devices. The other advantage is the ability to hang many devices on the same controller card. There are several flavours of SCSI, with more in the works.

Actual speed is 1/3 to 2/3 of the theoretical raw speed depending on the mix of controllers and drives. Each device on the SCSI bus must be assigned a unique ID, usually set with jumpers or a thumbwheel, though plug & play is coming along. The controller is always 7. The priority pecking order is 7, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8.

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