Specifications

GLOSSARY
REFERENCE MANUAL 141
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 pro-
gram 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.
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 download The process of transferring files
and/or data from a download computer to a terminal
over a serial cable connection and in a local, as op-
posed to a remote, system environment.
Display The small screen on the Omni 37xx termi-
nal that shows numerals, letters, and punctuation
symbols in selected fonts, graphics in various for-
mats, information entered from the keypad, as well
as system prompts and messages.
Download To transfer files or data from a host
computer or sending terminal over a communication
link to a receiving terminal.
DTMF Dual-tone multi-frequency . The ordinary dial
tone on a telephone line.
File authentication A process through which one
proves and verifies the origin of a file, the identity of
the sender, and the integrity of the information it con-
tains.
Firmware System software, including the operating
system, boot loader, default display font, and system
messages, stored in terminal flash memory.
Fixed prompt A system prompt or message stored
as part of system firmware in terminal memory.
Fixed prompts appear on the terminal display to alert
the user to specific system occurrences or malfunc-
tions, and to prompt the user to enter specific infor-
mation or select options.
Flash memory An area of non-volatile memory
where files can be stored. The Omni 37xx also has a
RAM-based file system. Files can be stored in RAM
(drive I:) or in flash (drive F:) memory area of any
file group (Groups 1–15).
Host computer Also called a download computer.
The primary or controlling computer in a multiple
computer operation. Also, a computer—usually a PC
running Windows NT or Windows 95 or 98—used to
prepare programs for download to POS terminals.
Host computers are also used to process transac-
tions that originate from a distributed network of POS
terminals.
Input The process of entering data into a process-
ing system or a peripheral device such as a terminal,
or the data that is entered.
Interface A common boundary between two sys-
tems, devices, or programs. Also, to interact.