Glossary
Dual In-line Package
example, any equipment at which a
communication path begins or ends such as
printers, data terminals, and computers.
A device on which an integrated circuit or other
small components are mounted. It provides a
protective casing for the components and pin
connections for plugging the chip in a circuit
board.
Dual In-line Package switch(es)
Small switches used to set up or adjust
equipment.
DUART
Dual Universal Asynchronous
Receiver-Transmitter is a device which provides
two RS-232C input/output interfaces (channels).
environment 1. A set of strings, distinct from the arguments,
made available to a process when it executes
[1] a file; the environment is usually inherited
across exec
(2) operations.
2. A specific environment [2] maintained by the
shell.
3. A nebulously identified way of doing things,
as in “interactive environment”: a deprecated
usage, not always expunged from these
manuals.
error
error message
Occurs when a hardware or software condition
prevents the successful execution of a system or a
user process.
A message sent from the system to the system
console when an error occurs.
GLOSSARY GL-3