VeriFone VX 680 Reference Manual page 183

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
contains.
Firmware
System software, including the operating
system, boot loader, default display font, and system
messages, stored in terminal 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
malfunctions, and to prompt the user to enter
specific information or select options.
Flash memory
An area of non-volatile memory
where files can be stored. Files can be stored in drive
I: or in 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 XP, Windows 2000, Windows NT
or Windows 95 or 98—used to prepare programs for
download to POS terminals. Host computers are
also used to process transactions that originate from
a distributed network of POS terminals.
Input
The process of entering data into a
processing system or a peripheral terminal such as
a terminal, or the data that is entered.
Interface
A common boundary between two
systems, devices, or programs. Also, to interact with
a terminal.
Keyed file character set
ASCII characters, from 00h to 5Fh (or 0 to 95
decimal), that is used by the VX 680 keyed file
editor. Although an application program can
download all 95 characters in this set, you can only
enter 50 of these characters from the terminal
keypad: 0–9, A–Z, and 14 special characters.
Keyed file editor
A keyed file editor lets you
create new records or modify existing records stored
in a keyed file such as CONFIG.SYS. See
CONFIG.SYS file.
A limited set of 96
Keyed file record
ASCII data, or variables, stored
in the terminal's CONFIG.SYS file(s). A keyed file
record consist of two parts: a search key that
identifies the record, and the data or variable stored
in the record. See CONFIG.SYS
Keypad
A small keyboard or section of a keyboard
containing a smaller number of keys, generally those
used in simple calculators. The 16-key core keypad
of the VX 680 terminal is used to enter data and
perform operations.
Leased line
A private telephone line leased from
the phone company. See
Line cable
A telephone-type cable with modular
plugs on each end to connect the terminal to a dial-
up telephone line.
Local functions
Operations performed at the
terminal only and not in interaction with a host
computer. For the VX 680, local functions such as
internal diagnostics are performed in Verix Terminal
Manager. See Chapter
Manual transaction
manual entry of account information from the
terminal keypad instead of automatic entry of the
information from a reading terminal, such as a
magnetic stripe card reader.
Memory
A terminal or medium that can retain
information for subsequent retrieval. The term is
most frequently used to refer to the internal storage
of a computer (or a terminal) that can be directly
addressed by operating instructions. In the
VX 680, files are stored in non-volatile flash memory.
Messages
Words and symbols appearing on the
display screen which inform the user of the terminal
of the result of a process, or if an error has occurred.
The term "prompt" is used when the displayed
message is requesting the user to enter information
or to select an option.
Modem
Modulator/demodulator. A terminal that
converts a digital bit stream into an analog signal to
transmit over an analog communication channel
(modulation), and converts incoming analog signals
into digital signals (demodulation). The VX 680
modem dongle allows communication with a host
computer over a dial-up telephone line.
file.
Dedicated line.
3.
A transaction involving the
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LOSSARY
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