Glossary

GL-3

Issue 1 September 1994
D
daemon
An agent program that runs continuously on a server system in a
UNIX environment and provides resources to client systems on
the network.
dial-up
A temporary, as opposed to dedicated, connection between
machines established over a standard phone line.
DLL
Dynamic Link Library contrasts Terminate and Stay Resident
(TSR). Windows automatically loads the applications into
memory when required and unloads it when space is needed for
other applications.
default
A value supplied by the system when a user does not specify a
required command, parameter or qualifier.
device name
Identification of a physical device, for example LPT1 for a
printer. Can also be a logical name equated to a physical device
name.
domain
A named group of machines on the network. A domain name
consists of a sequence of names (labels) separated by periods
(dots).
DNS
Domain Name System. An online distributed database that
maps machine names into IP addresses.