[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] L1 cache      fifth-generation processors  L2 cache  2nd  3rd      Coppermine core improvements in      Pentium processor families  2nd      upgrading  2nd  LAN activity      triggers  laser power settings  latency of hard disk drives  LBA (Logical Block Addressing)  2nd  leakage current  legacy cards     installing      ISA slots      Windows NT, installing  Level 1 cache  [See L1 cache] Level 2 cache  [See L2 cache] level-sensitive interrupts  LFN  [See long filenames] Light Intensity Modulated Direct Overwrite (LIMDOW) drives  line regulations  line-boosts SPS  line-interactive UPS  line-out/line-in speaker and headphone connectors  linear power supplies, troubleshooting  Linux  local I/O bus  Logical Block Addressing (LBA)  2nd  logical formats of writable CDs  logical formatting  2nd  Logitech     cordless keyboards      mice  long filenames (LFN)     caution for backups      tape drives and  loopback plugs  lossless compression  lossy compression  2nd  low-level formatting  2nd  low-profile desktop cases  Low-Voltage Differential SCSI (LVD SCSI)  LPTs, mapping parallel ports to  LPX     form factors  2nd      pinouts  LVD SCSI (Low-Voltage Differential SCSI)