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CompTIA A+ 220-701 and 220-702 Practice Questions Exam Cram, Fourth Edition by Patrick Regan

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Exam Cram: The CompTIA A+ Cram Sheet

This cram sheet contains the distilled, key facts about the CompTIA A+ 220-701 and 220-702 exams. Review this information as the last step before you enter the testing center, paying special attention to those areas where you think that you need to the most review.

Hardware

1. Motherboards connect everything together. Typical form factors include ATX (most common), BTX, microATX, and NLX. The chipset includes a northbridge that connects the CPU, RAM, and x16 PCIe devices, and southbridge that connects secondary systems such as USB, SATA, IDE, and sound. Types of expansion busses include PCI, AGP, PCI Express (PCIe), AMR, CNR, and PC Card (PCMCIA).

2. The central processing unit (CPU) or processor takes ...

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