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Index
IRQs (Interrupt Requests)
integrated drive electronics. See
IDE
integrated motherboards
advantages/disadvantages,
34-35
defined, 11
Integrated Services Digital Net-
work. See ISDN
integrated sound, 348
Intel, Z277 chipset, 77
Intel HTT (Hyper-Threading
Technology), 54
Intel processors, 48-49
Intel website, 49
interfaces
APIs, sound cards, 348
hard drives, 257-258
IDE, 259-263
parallel, 258
SCSI, 264-266, 276-280
serial, 258
types, 257
ODDs, 338-339
operating systems, 472-473
interlacing displays, 385
internal commands, 495
internal data bus, 47
internal modems, installing, 720
Internet
browsers
active scripting, 835
cookies, controlling, 835
firewalls, 836-839
hijacked, 833-834
malicious code types, 839
phishing, 841
proxy servers, 836
security programs, 840
social engineering, 840
connectivity
dial-up, installing, 801-802
overview, 696
mobile connectivity, 709-710
modems, 696
56Kbps, 701-702
cable, 704-708
cabling, 696
communication, 721-723
connectivity, 696
defined, 696
digital, 702
digital versus analog, 701
DSL. See DSL
external, installing, 720-721
fax, 702
internal, installing, 720
maintenance, 709
phone line limits, 701
satellite, 709
security, 833
active scripting, 835
clear text emails, 834
cookies, controlling, 835
encryption, 833
firewalls, 836-839
hijacked browsers, 833-834
hijacked email accounts, 834
malicious code types, 839
network attacks, 841-842
phishing, 841
programs, 840
proxy servers, 836
social engineering, 840
spam, 834
VPNs, 842-843
serial communication, 697-700
service providers (ISPs), 709
VoIP, 703-704
faxing interference, 704
web browsers, 711-712
Internet appliances, defined, 6
Internet Control Message Protocol
(ICMP), 776
Internet Explorer
active scripting, 835
configuring, 723-724
cookies, controlling, 835
icon, 475
Internet Options tabs, 711-712
proxy servers, 836
Internet layer
TCP/IP, 779
TCP/IP model, 746
Internet Message Access Protocol
(IMAP), 778
Internet Options control panel, 521
interpolation, scanners, 357
Interrupt Requests. See IRQs
interrupts
IRQs, 102-104
MSI/MSI-X, 106
PCI, 105
Intruder detection error message,
186
intrusion detection, configuring, 99
invalid Disk Management status
state, 298
I/O addresses, 106-107
I/O APICs, 102
I/O controller hub (ICH), 77
I/O shields, 129
IOPS (input/output operations per
second), 457
IP addresses, 747
alternative, 766
alternative configuration, 766
assigning, 765-766
broadcast address, 749
default gateways, 766-767
DNS servers, 767
host, 748
IPv4, 747-748
IPv6, 747
network numbers, 748
pinging, 774
subnet masks, 749-752
two-network example, 748-749
types, 747
viewing, 773
ipconfig command, 508, 773
IPS (in-plane switching), 388
IPv4 addresses, 747-748
IPv6 addresses, 747
irate customers, handling, 461-462
IRQs (Interrupt Requests), 102
APICs, 102
configuring with Device
Manager, 102-103
defined, 102
MSI/MSI-X, 106
multiple-device port
assignments, 102
PCI, 105
resource conflicts, 104
steering, 105
- 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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