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Chapter 13: Advanced Laptops and Portable Devices 25<strong>Summary</strong>This chapter has described components of laptops and portable devices. Here are someimportant concepts contained in this chapter:■■■■■■■■■■■■■Bluetooth creates a small wireless PAN for connected cell phones, printers, and laptops.An IR network uses infrared light to create short-range networks that are primarilyused to control input devices and mobile devices.A cellular WAN allows you to use your cell phone and laptop for voice and data communications.The most popular wireless technology is Wi-Fi. The four major Wi-Fi releases, eachwith different speed and bandwidth ratings, are IEEE 802.11 a, b, g, and n.Satellite networks are faster than modems but slower than DSL and cable networks.Satellite networks are primarily used in remote locations.A CRU is a component that a user can easily install without technical training.A FRU is a component that a trained service technician may install at a remotelocation.Most repairs can be done at customers’ sites or at any local repair center. However, onsome occasions a laptop must be sent to the manufacturer for repairs.Professional technicians follow preventive maintenance schedules to keep their equipmentat optimal performance levels.Laptops are more susceptible to contamination and damage. A well-maintained laptopreduces repair costs.A docking station allows a laptop to easily connect to peripheral devices similar tothose found on desktop computers. A port replicator can be added to a laptop if theuser needs more I/O ports.Mastering the steps in troubleshooting laptop problems is considered a career milestoneby many technicians.A well-trained technician must possess good customer communication skills.<strong>Summary</strong> of ExercisesThis is a summary of the Labs, Worksheets, Remote Technician exercises, ClassDiscussions, Virtual Desktop activities, and Virtual Laptop activities associated with thischapter.
26 IT Essentials: PC Harware and Software Companion GuideWorksheetsThe following worksheets cover material from this chapter. Refer to the labs in ITEssentials: PC Hardware and Software Labs and Study Guide, Third Edition:Worksheet 13.2.0: Investigating Repair CentersWorksheet 13.3.1: Laptop BatteriesWorksheet 13.3.2: Docking StationWorksheet 13.3.3: Research DVD DriveWorksheet 13.3.4: Laptop RAMWorksheet 13.5.3: Verify Work Order InformationCheck Your UnderstandingYou can find the answers to these questions in the appendix, “Answers to Check YourUnderstanding Questions.”1. Which IEEE specification defines WPAN technology?A. 802.3.1B. 802.5.1C. 802.7.5D. 802.11.1E. 802.13.5F. 802.15.12. Which IEEE specification defines Wi-Fi technology?A. 802.3B. 802.5C. 802.7D. 802.11E. 802.13F. 802.15
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CHAPTER 1Introduction to the Person
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GlossaryThis glossary defines many
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ase station 3AppleTalk A protocol s
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CMOS battery 5bus topology A networ
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desktop computer 7crosstalk Interfe
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dynamic routing 9Domain Name System
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floppy data cable 11FFast Ethernet
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