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viiiIT Essentials: PC Hardware and Software Companion GuideContentsIntroductionxxxiChapter 1 Introduction to the Personal Computer 1Objectives 1Key Terms 1Explain IT Industry Certifications 3Identify Education and Certifications 3Describe the A+ Certification 4Describe the EUCIP Certification 5Module 1: Computer Hardware 5Module 2: Operating Systems 5Module 3: Local-Area Network and Network Services 5Module 4: Expert Network Use 6Module 5: IT Security 6Describe a Computer System 6Identify the Names, Purposes, and Characteristics of Cases andPower Supplies 6Describe Cases 7Describe Power Supplies 9Connectors 9Electricity and Ohm’s Law 11Identify the Names, Purposes, and Characteristics of InternalComponents 12Identify the Names, Purposes, and Characteristics of Motherboards13Identify the Names, Purposes, and Characteristics of CPUs 15Identify the Names, Purposes, and Characteristics of Cooling Systems18Identify the Names, Purposes, and Characteristics of ROM and RAM19ROM 20RAM 20Memory Modules 21Cache Memory 21Error Checking 22Identify the Names, Purposes, and Characteristics of Adapter Cards22
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Page 4 and 5: iiiTrademark AcknowledgmentsAll ter
Page 6: vAbout the Technical ReviewersDavid
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Page 20 and 21: xixCoaxial Cable 277Fiber-Optic Cab
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CHAPTER 2Safe Lab Procedures and To
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Chapter 2: Safe Lab Procedures and
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CHAPTER 3Computer Assembly Step by
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CHAPTER 4Basics of Preventive Maint
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CHAPTER 6Fundamental Laptops and Po
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Chapter 6: Fundamental Laptops and
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CHAPTER 8Fundamental NetworksObject
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CHAPTER 9Fundamental SecurityObject
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CHAPTER 10Communication SkillsObjec
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CHAPTER 11Advanced Personal Compute
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CHAPTER 12Advanced Operating System
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AAppendixChapter 11. E2. A3. B4. B5
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Appendix A 3Chapter 61. A2. B3. B4.
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Appendix A 5Chapter 101. B2. B, C3.
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Appendix A 7Chapter 151. D2. B3. D4
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2 adapter cardadapter card An expan
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4 Basic Input/Output SystemBasic In
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6 CMYKCMYKblack.Display colors: cya
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8 Device ManagerDevice Manager An a
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10 eject buttonEeject button The le
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12 floppy disk drivefloppy disk dri
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14 IEEE 802.11aIEEE 802.11a An IEEE
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16 Internetwork Packet Exchange/Seq
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18 megabitmegabitbits).1,048,576 bi
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20 network printernetwork printer A
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24 registryregistry A system-wide d
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26 Small Computer System Interface
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28 Token Ring networkToken Ring net
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30 virtual private networkvirtual p
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