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CompTIA A+ Complete Study Guide Authorized Courseware: Exams 220-801 and 220-802, 2nd Edition by Toby Skandier, Emmett Dulaney, Quentin Docter

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Appendix A

Answers to Review Questions

Chapter 1: Motherboards, Processors, and Memory

1. A. The spine of the computer is the system board, otherwise known as the motherboard. On the motherboard you will find the CPU, underlying circuitry, expansion slots, video components, RAM slots, and various other chips.

2. C. DDR SDRAM is manufactured on a 184-pin DIMM. DIMMs with 168 pins were used for SDR SDRAM. The SIMM is the predecessor to the DIMM, on which SDRAM was never deployed. RIMM is the Rambus proprietary competitor for the DIMM that carries DRDRAM instead of SDRAM.

3. B. Remember the 8:1 rule. Modules greater than but not including SDR SDRAM are named with a number eight times larger than the number used to name the chips on the module. The ...

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