Glossary Appendix A
Seagate Travan 40 Product Manual Page 125
(slave). 0=select drive 0 (master)
DIRECTORY A table of contents to the various files stored on a computer device
(such as a tape or hard disc).
DIRECTORY
TRACK The track at the centerline of a tape, identified as track 254 by its Track
ID frame.
DMA Direct Memory Access. The ability to transfer data to/from main
memory without the direct involvement of the Host processor.
DMA CHANNEL An individual DMA data path. There may be several within a computer
system.
DMA MODE There are several ‘styles’ of DMA protocol and data rates.
See SINGLE-WORD DMA, MULTI-WORD DMA, and ULTRA DMA
DRDY ATAPI Status register bit: Device Ready
This indicates that the device is ready to accept commands.
DRIVE This is a short term for disc drive or tape drive.
DRQ ATAPI Status register bit: Data ReQuest
This indicates that the device is ready to transfer data to/from the Host.
DSC ATAPI Status register bit: Disk Seek Complete
EARLY
WARNING Early Warning marker indicates the end of the permissible recording
area.
ECC (Error Correction Code) Special drive generated information that can
be used to correct bad blocks.
ECC BLOCK A block containing drive-generated ECC data in its data field and part
of control field.
ECMA European Computer Manufacturers Association
EEPROM Electronically Erasable, Programmable Read-Only Memory
EIDE Extended IDE
EISA BUS Extended ISA bus
EOT End of Tape marker indicating the end of tape.
EOD (End of Data) Indicates the point where the host stopped writing data to
the tape.
EOM End of Media
EOT End of Tape
ERASE To remove all magnetically recorded information from the tape.