Rosewill Computer Case 422 Informations techniques Page 16
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- Table des matières
- DEPANNAGE
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
xv
Contents
Lab 12.33 Performance and Reliability in Windows 7 ....................................... 685
Lab 12.34 Installing and Using Remote Desktop in
Windows XP ................................................................................................................. 686
Lab 12.35 Windows 7 Remote Desktop ................................................................. 688
Lab 12.36 Windows 7 Task Scheduler .................................................................. 689
Activities ....................................................................................................................................... 691
Chapter 13: Internet Connectivity ............................................................................................695
Internet Connectivity Overview .............................................................................................. 696
Modems Overview ....................................................................................................................... 696
Serial Communication Overview ............................................................................................ 697
How to Configure Serial Ports and Devices ......................................................................... 698
56Kbps Modems .......................................................................................................................... 701
Fax Modems ................................................................................................................................. 702
Digital Modems and ISDN ........................................................................................................ 702
VoIP ............................................................................................................................................... 703
Cable Modems ............................................................................................................................. 704
xDSL Modems .............................................................................................................................. 706
Troubleshooting Cable and DSL Modems ............................................................................ 708
Satellite Modems ........................................................................................................................ 709
Modem Preventive Maintenance ............................................................................................. 709
Mobile Connectivity ................................................................................................................... 709
Web Browsers .............................................................................................................................. 711
Soft Skills—Mentoring ............................................................................................................. 713
Chapter Summary ...................................................................................................................... 714
Key Terms .................................................................................................................................... 714
Review Questions ....................................................................................................................... 714
Exercises ....................................................................................................................................... 716
Lab 13.1 Exploring Serial Devices in Windows XP ............................................ 716
Lab 13.2 Exploring Serial Devices in Windows Vista/7 ..................................... 717
Lab 13.3 Windows XP Direct Cable Connection ................................................. 718
Lab 13.4 Internal and External Modem Installation .......................................... 719
Lab 13.5 Introduction to Internet Explorer Configuration ............................. 723
Activities ....................................................................................................................................... 724
Chapter 14: Introduction to Networking ............................................................................... 727
Networking Overview ................................................................................................................ 728
Types of Local Area Networks ................................................................................................. 729
Network Topologies ................................................................................................................... 732
Network Media Overview .......................................................................................................... 734
Copper Media ............................................................................................................................... 734
Fiber Media .................................................................................................................................. 737
Protecting Your Network and Cable Investment ................................................................ 738
Ethernet Issues and Concepts ................................................................................................. 741
Network Standards ..................................................................................................................... 742
The OSI Model ............................................................................................................................ 743
- Guide to PCs 2
- Complete CompTIA 3
- Contents at a Glance 4
- Contents 10
- Contents 11
- About the Author 19
- Dedication 20
- Acknowledgments 20
- We Want to Hear from You! 21
- Reader Services 21
- It Pays to Get Certified 22
- CompTIA Career Pathway 23
- Steps to Certication 23
- Content Seal of Quality 24
- Why CompTIA? 24
- Introduction 25
- Organization of the Text 26
- Features of This Book 27
- IT work 31
- CompTIA A+ Exam Objectives 32
- CompTIA Exam Objectives 33
- Disassembly 36
- Disassembly Overview 37
- Electrostatic Discharge (ESD) 37
- Opening the Case 41
- Cables and Connectors 41
- Snug connections 43
- Storage Devices 45
- Motherboards 46
- Mobile Device Issues 47
- Reassembly 49
- Preventive Maintenance 49
- Basic Electronics Overview 51
- Electronics Terms 51
- Good connection Broken wire 53
- Power Supply Overview 54
- Power Supply Form Factors 55
- Tech Tip 56
- Purposes of a Power Supply 58
- Power Supply Voltages 60
- Mobile Device Power 61
- Keep Li-ion batteries cool 63
- Power Interface) 64
- Windows power management 65
- Watch the wattage 68
- Solving Power Supply Problems 70
- Adverse Power Conditions 71
- Adverse Power Protection 72
- Surge Protectors 72
- Line Conditioners 74
- Figure 4.32 Line conditioner 75
- Figure 4.33 Sine wave and 75
- Standby Power Supply (SPS) 77
- Electrical Fires 78
- Computer Disposal/Recycling 79
- Chapter Summary 81
- Review Questions 82
- Exercises 85
- External Cables 86
- Computer Case Removal 86
- Adapter Placement 86
- Motherboard 88
- Lab 4.3 Amps and Wattage 89
- Lab 4.4 Continuity Check 89
- Lab 4.5 Pin-Out Diagramming 90
- Lab 4.6 Fuse Check 91
- Lab 4.7 Using a Multimeter 91
- Figure 4.38 AC outlet 93
- GND to hot 120VAC 93
- GND to neutral 0VAC 93
- Hot to neutral 120VAC 93
- +5 volts 95
- +12 volts 95
- Activities 97
- Critical Thinking Skills 99
- A+ Certification Exam Tips 99
- Complete PC Restore tool 107
- FireWire 114
- IRQs (Interrupt Requests) 120
- PBs (petabytes) 129
- Setup program 136
- SSDs (solid state drives) 138
- SSDs (solid state drives) 139
- TBs (terabytes) 140
- troubleshooting 143
- video 145
- Windows 147
- Windows Vista 148
- Windows Vista 149
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