7.3. Working with Laptops and Portable Devices

Contrary to the name, this objective doesn't expect you to know everything there is to know about laptops—you had to do much of that for the Essentials exam. Instead, this objective focuses on several key areas.

7.3.1. Critical Information

This exam focuses on three key areas, regardless of the elective you've chosen to take. These three are discussed in the following sections. Some of this material is overlap from Chapter 1, "Hardware," and you should be able to breeze through it fairly quickly.

7.3.1.1. Electrical Issues

Electrical issues can be either AC- or DC-related. AC is the standard current coming from the outlet to the power cord. The power supply converts AC to DC, and the computer ...

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