Index_D


D

DACs (Digital-to-Analog Converters), 478, 479, 838

Data

back ups, 151–152

comparing data in files, 313–314

COMP command to compare, 313–314

compression and backup programs, 151–152

lost data, 294–295

retrieving lost data, 9, 146, 152, 324

System State data, 282–283

transfer speeds, 241–242, 299

See also Storage devices

Data Link layer, OSI reference model, 584–585

Data recovery

Ontrack Data Recovery Services, 9, 146, 152

RECOVER command, 324

tools for, 9, 150, 152

Data transfer cables, 8

Database Server, 587

DB-9 connectors, 553–554

DB-15 connectors, 555–556

DB-25 connectors, 396, 398, 550, 552–554

DC power output connectors, 101–102

DCC (Direct Cable Connection), 786–787

DDR SDRAM (Double Data Rate SRAM), 444

Dead computer, troubleshooting, 285

DEBUG.EXE, 635

Default gateway, 591

DEFRAG command, 634

Defragmentation, 56, 527, 634

Degaussing, 491

DEL (DELETE) command, 86, 316–317, 334, 630

DELTREE command, 630

Desks, 303–304

DETCRASH.TXT (Win9x), 651

DETLOG.TXT (Win9x), 651

Device drivers

accessing information about installed drivers, 340

chipset manufacturers as source for, 38–39

in config.sys, 54

described, 30–31

disabling, 336

downloads of, 37–38

enabling, 337–338

installing and reinstalling, 31–32

obtaining, 37–38

for optical drives, 166–167

printer drivers, 30–31, 33, 268

reinstalling via Device Manager, tutorial, 34–35

rolling back drivers, 36–37

troubleshooting and, 266

updates for, 57–58

video driver upgrades, 180

Windows and compatibility of, 35–36

Device Manager

accessing, tutorial, 34

conflict resolution, 43–47, 466

drivers, reinstalling, tutorial, 34–35

Input/Output Address (I/O Address), 42

IRQL (Interrupt Request Line) in, 40–42

IRQs, 40–47, 466

modem troubleshooting and, 191

optical drives and, 169–170

resources in, 40–47

status information, 40

Windows 2000, 726

Windows 9x, 658–660

Windows ME, 763

Windows XP, 806

DHCP (Dynamic Host Configuration Protocol), 738, 838

Diagnostic Startup, Windows XP, 811

Diagnostics utility, Windows NT, 703

Dialing Rules, 226–227, 229–232

Dial-up network

Windows 9x, 671

Windows ME, 775–776

Windows NT, 696–697

Digital cameras, 480, 510

DIMMs (Dual Inline Memory Modules)

described, 447, 448, 839

installing, 120–121, 450

sockets, 396, 398

on motherboard, 68–69, 116–117

DIN keyboard connectors, 94, 396, 398, 399, 471, 554–555

DIP switch settings, motherboard, 79, 80, 88, 396, 399, 442

DIR command, 317–318, 335, 630

Direct current (DC), 400

Directories. See Folders

DISABLE command, 336

Disabled users, Accessibility Options and, 19

Disk Administrator, Windows NT, 700

Disk Cleanup applet, 55–56

Disk Defragmenter applet, 56

Disk drives. See Drives

Disk Management, 20, 138, 150

Diskeeper, 56

Diskette drives. See Disks; Floppy disk drives

DISKPART command, 336–337

Disks

bootable, 23–25, 171, 262–264, 278–279

Disk Cleanup, Windows 2000, 734

Disk Cleanup, Windows 9x, 664–665

Disk Defragmenter, 527

Disk Management tool, Windows 2000, 730–731

DISKCOPY command, 630

Emergency Repair Disks (ERDs), 278–279

mirroring and RAID, 539

quotas, Windows 2000, 731

Windows 9X startup disks, making, 160

See also Drives

Display adapters, 6, 493, 500–501

Display Properties

described, 497, 499

Windows 9x, 661–663

Windows ME, 760–761

Displays. See Monitors

DMA (Direct Memory Address)

channels, 467–468

controllers, 423, 424, 529

defined, 839

DNS (Domain Name System), 591, 596, 738, 839

Docking stations

docked/undocked hardware profile, 735–736

for laptops, 482

DocMemory, 125

Documentation, repair, 11

Domain, 668, 681

Dongles, 223–224, 839

DOS

AUTOEXEC.BAT, 454, 620, 621, 623–625

boot disks, 262–264

CD-ROMs and DOS support, 171

command interpreter, 619

command prompt, 58–61, 632–635

commands and switches, 60–61, 629–630

CONFIG.SYS, 454, 620, 621–623

defined, 839

file name structure, 625–628

hard drive control and DOS commands, 136–138

introduction, 619

IO.SYS, 620

memory management utilities, 635–638

MSDOS.SYS, 620, 621

SYS command, 327

system and configuration files, 620–625

using, in Windows ME, 760

Dot matrix printers, 503–504, 511

Dot pitch, 491–492

Downloads

of device drivers, 37–38

e-mail attachments that won’t download, 246

rejected downloads, 239

Dpi (dots per inch), 478, 839

Dr. Watson, 657, 764

DRAM (Dynamic RAM), 16, 440, 441–443, 446, 839

DrDflash, 84

Drive overlay software, 149

Driver Signing

Windows 2000, 726

Windows XP, 806

Drivers. See Device drivers

Drives

disk drives, 5, 20

CD drives, 5, 161

DVD drives, 5, 162, 163

FireWire (IEEE 1394), 153–154

floppy disk drives, 5, 155–160, 296

hot-swappable drives, 133, 153, 154

installation software, 7

lettering system for, 135

mapping, 698–699

microdrives, 154

My Computer, 137–138

network drives, 135

S.M.A.R.T. drives, 17, 146, 148

SATA drives, 132–133

SCSI drives and ports, 94

testers for drives, 148

USB drives and ports, 93, 94, 153–154

Zip drives, 160

See also Disks

Dry chemical (ABC and BC) fire extinguishers, 404

DSL (Digital Subscriber Line), 194, 600–601, 604, 840

Dual Address Cycles (DAC), 410

Dual boot systems

Windows 2000, 724–725

Windows ME, 757–759

Windows NT, 684

Windows XP, 803

Dual homer hosts, 603

Dual inline memory modules (DIMMs). See DIMMs

Dualview (XP), 175

Dust, cleaning tools and vacuums for, 8

DVD drives, 5, 162–163

DVDs (Digital Versatile Disks), 8, 540–541, 840

DVI ports, 93, 94

DVI video, 179

DVO connector, 70

DXDIAG command, 761–762

Dye sublimation printers, 510

Dynamic disks, 135




The A+ Certification & PC Repair Handbook
The A+ Certification & PC Repair Handbook (Charles River Media Networking/Security)
ISBN: 1584503726
EAN: 2147483647
Year: 2003
Pages: 390

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