Exercise 6.8 Among the most common bus types used in practice today are FireWire (IEEE 1394), USB, PCI, and SATA. Although all four are asynchronous, they are implemented in different ways giving them different characteristics. Explore different bus structures by answering questions about the buses and the following peripherals.

a. External Hard Drive

b. Keyboard 6.8.1 [5] <6.5> Select an appropriate bus (FireWire, USB, PCI, or SATA) for the peripherals listed in the table. Explain why the bus selected is appropriate. (See Figure 6.8 for key characteristics of each bus.)

6.8.2 [20] <6.5> Use online or library resources and summarize the communication structure for each bus type. Identify what the bus controller does and where the control physically is.

6.8.3 [15] <6.5> Outline limitations of each of the bus types. Explain why those limitations must be taken into consideration when using the bus.