VeriFone Omni 3200 Reference Manual page 175

Appendix C. Glossary
Debugging. The process of detecting and solving errors (bugs) in a
program. The Omni 3200 terminal has built-in debugging support that
allows it to receive and execute debugging commands from a
computer connected to its serial port.
Dedicated Line. A leased or private telephone line that is used for a
particular communications purpose, such as to connect a terminal to a
host computer. See 'Leased Line'.
Default. A value, parameter, options, or attribute that is assigned by
the program or system when another has not been assigned by the
user.
Delete. To remove a record, field, or item of data.
Diagnostics. Techniques employed for detection and isolation of
malfunctions and errors in programs, systems, and devices. In a
diagnostic test, a program or routine is run to detect failures or
potential failures. These tests and routines help detect and isolate
problems in a terminal or peripheral device.
Diagnostic Counters. A collection of user-defined and operating
system statistical counts used for diagnostic evaluation. Counter
values accumulate until a command is issued by the diagnostics
software to clear them. Diagnostic counters keep track of the number
of times particular events, such as key presses or power-on cycles,
occur.
Dial-Up Line. A standard public telephone line. The switching
equipment on a dial-up line requires that a party dial the other party
before a connection can be made.
Direct Computer Download. The process of transferring an
application program and/or data from a download computer to the
terminal. The terminal and the computer are directly connected by a
serial cable.
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