CompCh22-Answers to RQ

CompCh22-Answers to RQ - REVIEW QUESTIONS (COMP CHAPTER 22)...

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R EVIEW  Q UESTIONS  (C OMP  C HAPTER  22) Reviewing the Basics 1. What is the difference between narrow SCSI and wide SCSI? Narrow SCSI has an 8-bit data bus, and wide SCSI has a 16-bit data bus. 2. Name at least three advantages of using SCSI over IDE. More devices on the same system, higher rotational speed, lower seek time, better  performance in general, only one IRQ required for entire SCSI chain instead of one for  each device in IDE, faster data transfer (on the SCSI bus), support for multitasking,  ability for two or more devices to operate simultaneously 3. Can you mix single-ended and differential devices on a SCSI subsystem? Why or  why not? It is possible but not recommended because they transfer data in different ways. Even  with adapters, incompatible connections between single-ended and differential signals  can damage both the host adapter and the devices attached to it.  4. What is SCAM, and how does it make device installation easier? SCAM (SCSI Configuration AutoMatically) is a method by which SCSI devices and the  host adapter can be Plug and Play. This simplifies the installation process and eliminates  the need to set jumpers or rotary dials on non-SCAM-compliant devices.  5. To what SCSI ID number should the host adapter be set for narrow SCSI?
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7. Some host adapters come factory-set to the highest SCSI ID.
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CompCh22-Answers to RQ - REVIEW QUESTIONS (COMP CHAPTER 22)...

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