Communication line
A cable along which electrical signals are transmitted. Systems or devices
connected by communication lines can share information and resources.
Computer system
A combination of computer hardware, software, and external devices that
performs specific operations or tasks.
Console terminal
The terminal you use when installing software and running diagnostic programs.
Controller
A component that regulates the operation of one or more peripheral devices.
Controllers are often called interface units.
CPU
See Central processing unit.
Data
A representation of facts, concepts, or instructions, suitable for communication,
interpretation, or processing by human beings or by machines.
DAT
Digital audio tape. Used in digital data storage recording technology.
Data transmission
The movement of data, in the form of electrical signals, along a communication
line.
DCL
Digital command language. DCL is the standard command interface to the VMS
operating system.
Debug
To detect, locate, and correct errors (bugs) in system hardware or software.
DECnet
Digital networking software that runs on nodes in both local and wide area
networks.
Glossary–3
