Digital Equipment VAXstation 2000 Owner's Manual page 129

diagnostics
Programs that detect and identify abnormal system hardware operation. The
dia^ostics for the VAXstation 2000 is located in read-only memory (See
read-only memory.) j- \ ^
disic
Aflat circular plate with a coating on which data is magnetically stored in
concentric circles (tracks). A fixed disk resides permanently inside a disk
drive, while a diskette is removable.
disk drive
Adeface that holds a disk. The drive contains mechanical components that
spm the disk and move the read/write heads that store and read information
on the surface of the disk.
diskette
Aflexible, "floppy" disk contained in asquare jacket Diskettes can be inserted
and removed from diskette drives.
diskette drive
Adisk drive that only reads or writes on removable diskettes.
dot matrix
Amethod of generating characters for printing that uses dots to produce
readable characters. ^
down-line load
To send a copy of a system image or other file over a line to the memorv of
a target node. ^
error message
Amessage displayed by a system to indicate a mistake or malfunction.
Ethernet
At)^e of local area network based on Carrier Sense Multiple Access with
Collision Detection (CSMA/CD).
file
Acollection of related information treated by the system as asingle unit.
fixed disk
See disk.
Glossary-4