upgrading and repairing PCs technicians ... - 400 Bad Request

D
DAT (Digital Audio
Tape) tape backup
drives, 155
data
backing up, 160-161
parallel, 313
restoring, 161
data bus, 5
data bus widths, 19
data cables, 146
data rates (USB), 209
data transfer rates,
comparing USB to
IEEE-1394, 212
data transfers
(tools/parts/supplies),
313-314
DB-9 network cable
connector, 277
DB-15 connector, 326
DB-15 network cable
connector, 277
DB-25 connector, 189
DB-25 printer connectors,
117
DB-25 SCSI connectors,
116-117
DC (direct current), 34
DCC (direct cable connection),
5, 290
advantages, 294-295
configuration
requirements, 297
null modem cables,
290-291
parallel data-transfer
cables, 290-291
software, 291-292
MS-DOS Interlink,
292
Windows 9x/Me,
292-293
Windows NT4, 293
troubleshooting,
295-296
device-specific cables 337
DDR Consortium, 41
DDR DIMMs, 42
DDR SDRAM (Double
Data Rate
Synchronous DRAM),
41-42, 253
Defrag (Defrag.exe),
306
delay parameters,
adjusting, 221
detecting
DMA, 304
I/O port address
usage, 303
I/O port addresses,
304
IRQs, 302-304
LBA mode support,
100-101
memory, 303-304
resource conflicts,
265-266
determining
amount of memory
(video cards), 249
BIOS version, 79
hard drive capacity,
101-102
memory usage, 49
motherboard manufacturers,
79-82
parity support, 43-44
usage
DMA, 52-53
I/O port addresses,
57
IRQs, 52-53
device conflicts, 265.
See also hardware
conflicts
Device Manager, 6, 53
Device Manager tab,
174
device-specific cables,
313