PC Hardware A Beginner’s Guide

(ff) #1
Diodes, 36, 317
DIP chips, 131, 138
DIP switch block, 290
DIP sockets, 81
Direct thermal printers, 433
Disc, 172
Disk cache, 158
Disk Cleanu putility (Windows), 592-593
Disk compression, 195
Disk data organization, 187-189
Disk Defragmenter utility (Windows), 592-593
Disk platters, 171-172
Disk spacers, 173
Disk spindle, 172
Diskettes, 196
Disks, 169-200.See alsoHard disks/drives
Display Power Management System (DPMS), 396
Display Properties (Windows), 257, 261-262,
278-279, 375-376, 397-398
Displays.SeeMonitors and displays
Dithering, 431
Divide by zero error, 150
DMA channels, 242, 304-305, 309
DMA data transfers, 303-304
DMA (direct memory access) 186, 241-242, 283,
302-307
DMA modes, 304, 306
DMA parties, 306-307
Dolby compression technologies, 215
DOS/Windows logical memory layout, 148
Dot matrix printers, 404, 411-414, 585
Dot pitch (monitor), 384-385
Dots per inch (dpi), 405, 430-431
Dots (on monitor screen), 372
Dot-stack, 432
Double Data Rate SDRAM (DDR SDRAM), 267
Double words (dwords), 58
Draft quality print, 407-408
DRAM (Dynamic RAM), 136, 138, 144-146, 266
Drawing tablets, 566
Dual-ported memory, 146
Dual-Scan STN (SDTN) crystals, 393
DVD (Digital Versatile Disc) player, 215-217, 540
DVD drives, 217, 594
DVD-Audio, 216
DVD-R (Recordable), 217
DVD-RAM, 217
DVD-ROM, 217
DVD-RW (Read/Write), 217
DWS (depth width and speed) notation, 142

 E
EEPROM, 84, 119, 130-131
Electrical charge, 27
Electrical circuit, 32-33

Electrical components, storing in bags, 319
Electrical cords, 603
Electrical power issues, 34, 329-335, 599-615
Electrical problems, power supply and, 329-330
Electrical protection, 595-596
Electricity, 26, 32-35, 48, 312-315
Electromagnetic emissions (monitors), 400
Electromagnetic interference (EMI), 328, 330, 599
Electron beams (CRT), 381-382
Electronic components of a PC, 35-36
Electronics, 316-317
Electrophotographic (EP) laser printer, 423-426
Emergency Repair Disk (ERD), 586
Emission standards for CRTs, 400
Energy Star program, 116, 396, 615
Enhanced Capabilities Port (ECP), 92, 436
Enhanced Graphics Adapter (EGA), 257, 379
Enhanced Parallel Port (EPP), 92, 435
Enhanced Small Disk Interface (ESDI), 184-185
Environmental issues, 400, 596, 619
Environmental static electricity, 319
EPROM, 120, 130-131, 118-119
Ergonomic keyboards, 455-456
Error bee pcodes, 622-624
Error diffusion, 421
Error-correcting code (ECC), 95, 144-145
ESD (electrostatic discharge), 34-35, 317-318, 400
Ethernet cable designations, 517
Even parity, 144
Expanded memory, 148
Expansion buses, 83, 222-230
Expansion card jumper blocks, 289
Expansion cards, 219-251
Expansion ports, IRQ bus wires connected to, 286
Expansion slot connectors, cleaning, 594
Expansion slots, 82-83, 89, 220-221, 225
Exponential fog (3D graphics), 274
Extended Data Output DRAM (EDO DRAM), 266
Extended Industry Standard Architecture
(EISA) bus, 90, 223
Extended memory, 148-149
Extended partitions, 192
Extended system configuration data (ESCD), 124
External cache, 160, 167
External ports and connectors, 480
External SCSI connectors, 504-505
Extremely Low Frequency (ELF) radiation, 400

 F
FAQs (Frequently Asked Questions) lists, 275
Fast Ethernet, 517
Fatal exception error, 150
FC-AL (Fiber Channel-Arbitrated Loop)
interface, 185-186
FCC (Federal Communications Commission), 329

(^642) PC Hardware: A Beginner’s Guide

Free download pdf