Rosewill Computer Case 422 Informacje Techniczne Strona 121
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Oceniono. / 5. Na podstawie oceny klientów
932
ISDN (Integrated Services Digital Network)
ISDN (Integrated Services Digital
Network), 702-783
isochronous data transfers, 30
ISP (Internet Service Providers),
709
iTunes, 786
J
JPEG (Joint Photographic Experts
Group), 356
JPG (joint photographic experts)
extension, 485
jumpers, 94
CMOS password, 100
K
KBs (kilobytes), 46
Kerberos protocol, 823
kernel (operating system), 6
Key Management Service (KMS),
590
Keyboard control panel, 521
Keyboard error or no keyboard
present message, 186
Keyboard is locked out—Unlock the
key message, 186
keyboard, video, mouse (KVM)
switches, 7, 393
keyboards, 13
capacitive, 13
cleaning, 18, 132
configuring Windows XP, 647
laptops, 13-14
mechanical, 13
number lock key, configuring,
98
ports, 12
PS/2 ports, 36
troubleshooting, 18
keyed connectors, 12
killing processes/tasks, 514
kilobytes (KBs), 46
Kingston Technology website, 216
KMS (Key Management Service),
590
KVM switches, 7, 393
L
L1 cache, 51
L2 cache, 51
L3 cache, 51
labeling discs, 338
labeling network cables, 734
ladder racks (cables), 739
land grid array (LGA) sockets, 57
landscape mode, LCDs, 387
LANs (local area networks), 728
Ethernet, 741-742
network resource management,
731
peer-to-peer, 729-731
security, 729
server-based, 729-730
LAPICs (local APICs), 102
laptops
batteries, 144-146
replacing, 152
troubleshooting, 153
components, 9
design components, 460-461
desktop components, com-
pared, 460
disassembly, 130-131
displays, 388-389
cleaning, 133
troubleshooting, 402-404
docking stations, 35
expansion slots, 74-76
ghost cursors, 14
GUIs, 472
hard drives, 281
Internet connectivity, 709-710
keyboards, 13-14
media bays, 10
memory, 207, 220
motherboards, compared with
desktop motherboards, 64
operating systems, recovering,
493
port replicators, 36
processors, 64
projectors, 394
security, 850-851
physical, 817
sound, 349-350
speakers, 349
storage, 281
traveling with, 144
USS, 817
video ports, 22
Windows 7 power settings, 150
wireless antennas, 760
large format inkjet printers, 411
laser lens (ODDs), cleaning, 343
laser printers, 411-415
defined, 407
maintenance, 421
memory upgrades, 420
spilled toner, 416
toner cartridges
defined, 414
refilling, 418
spills, 416
troubleshooting, 429
troubleshooting, 429-430
UPSs, 158
Last Known Good Configuration,
booting from, 610
Last Known Good Configuration
option, 611
latency, networks, 774
launching programs, 605
layers
OSI model, 743-745
TCP/IP, 746, 779
LCD monitors, cleaning, 133
LCDs (liquid crystal displays), 381,
386-389
cleaning, 396
LDAP (Lightweight Directory
Access Protocol), 778
LEDs (light-emitting diodes), 381
motherboards, 188
LGA (land grid array) sockets, 57
libraries, 484, 828
licensing
virtualization, 593
Windows Vista/7, 590
lid close detectors (laptop displays),
389
lifting, 3
light-emitting diodes (LEDs), 381
Lightweight Directory Access
Protocol (LDAP), 778
- 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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