Glossary - HP 220mx User Manual

Glossary

C-D
cartridge A plastic enclosure that
contains an optical disk. The cartridge
is labeled "A" or "B" to denote separate
sides of the optical disk. The optical
disk is never removed from the
cartridge.
disk See optical disk.
driver A program that allows the
operating system to communicate with a
peripheral device.
E-L
element A SCSI term for any one of the
autochanger components — drive,
mailslot, storage slots, or picker.
jukebox A term synonymous with
optical disk library or autochanger. This
type of optical storage device is often
referred to as a "jukebox" because when
a file is requested, the disk containing
the file is found, inserted into the drive,
and the requested information is sent to
the host computer system, similar to the
way a musical jukebox finds a record
and moves it to the turntable when a
song is requested.
Glossary
jukebox controller The part of the
jukebox that controls the sending and
receiving of SCSI commands and
controls the disk transport mechanism.
LAN Local area network. A group of
computers and peripherals physically
connected so users can share hardware
and software resources.
M-O
magneto-optical A type of optical
technology which uses a laser to read
from and write to a magnetic layer on an
optical disk. To write, a spot on the
magnetic layer is heated by a laser to a
point where it can be magnetically
altered by the write magnetic head. To
read, a light from the laser is reflected
from the spot. The magnetic alteration
causes the reflected light to be polarized
in one direction (interpreted as a "1") or
the opposite direction (interpreted as a
"0").
mailslot The area where disks are
inserted and removed from the jukebox.
multifunction drive An optical disk
drive that supports both rewritable and
write-once optical disks. The drive
detects the disk type by reading a
factory-stamped code on the disk, and
automatically determines whether to
operate in rewritable or write-once
mode.
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