L
Lands, 207
Lasers, dangers of, 438
Laser printer technologies, 424-428
Laser printer toner, 423, 426, 428, 432-433,
437-438
Laser printers, 20, 405-406, 423-433, 437-438,
581-583
Layered EDC/ECC, 205
LBA (logical block address), 186
LCD printing, 406, 425, 427-428
LCDs (liquid crystal displays), 370, 372-374, 378,
389-395, 595
LED printing, 406, 425, 427, 433
LEDs (light-emitting diodes), 364-365, 433
Letter quality (LQ) printing, 403, 407-408
Level 1 (L1) cache, 160, 165
Level 2 (L2) cache, 62, 83, 160, 162
Lightning strikes, 601-602
Line conditioning, 603, 604-609
Line printers, 403, 406
Linear fog (3D graphics), 274
Linear velocity, 211
Linear voice coil actuator, 180
Line-interactive UPS, 611
Liquid cleaning compounds, 586
Liquid crystals, 389-390, 393, 427-428
Local area network (LAN), 511
Local area network (LAN) printers, 436-437
Local bus architectures, 90, 226
Locality of reference, 159
Logic boards, hard disk, 182
Logic gates, 36, 48, 317
Logical device names for ports, 302
Logical devices, 301-302
Logical memory configuration, 147-149
Low-level formatting, 191, 200
LPT ports, 92, 229, 301-302, 434-436, 491-492
LPX motherboard, 76-77
LPX power supply, 325-326
M
MAC (media access control) addresses, 526-527
Machine words, 42
Macintosh (Apple), 10-11, 14
Magneto Optical (MO) discs, 206
Mainboard, 72
Mainframe computers, 5-6
Maintenance (PC), preventive, 570-597
Maintenance supplies, 586-587
Make codes (keyboard processor), 459-460
Masking the display, 383-384
Mastering (CD-ROM), 207
Material Safety Data Sheet (MSDS), 586-587
Math coprocessor, 60
Mechanical contact keyswitches, 461
Mechanical mouse, 464
Media Player (Windows), 548-549, 559
Megahertz (MHz), 134
Memory addresses, 302
Memory banks, 138, 140-141
Memory bit width, 141
Memory cards, 233
Memory chips, 142
Memory Controller Hub (MCH), 105
Memory errors, 149-150, 634-635
Memory Expansion Card (MEC), 233-234
Memory latency, 136
Memory module connectors, 140
Memory module sockets, 81, 233
Memory modules, 83, 141-142, 144, 151-155
Memory speeds, 133-136
Memory testing tools, 150-151
Memory-Mapped I/O, 298
Metal-oxide varistor (MOV), 330, 605
Metropolitan area network (MAN), 511
Micro-AT motherboard form factor, 76
Microchips, creation of, 46-47
Microphones, cleaning, 579
Microprocessor evolution, 57-61
Microprocessor heat sink, 54
Microprocessor packaging, 52
Microprocessors.SeeCPUs; Intel microprocessors
MIDI (Musical Instrument Digital Interface) files,
551-552
Midrange computers, 6
Milliseconds (ms), 133
Mindspring Visor, 18
Mini-ATX motherboard form factor, 79
Minicomputers, 6-7
Mini-LPX motherboard form factor, 76
Minitower computers, 16
Mip mapping, 272
MIPS (millions of instructions per second), 134
Misconvergence problems (monitor), 378
Modem cards, 234-235
Modem connections, 531-532
Modems, 529-530, 613
M1SE microprocessor, 61
Monitors and displays, 16, 20-21, 367-400.
See alsoCRTs
aperture grill, 385-386
aspect ratio, 264, 374
blank, 277-278
caring for, 398-399
cleaning, 399, 580-581
color depth, 375-377
controls, 378
cost of, 370
dot pitch, 384-385
environmental issues of, 400Index^645