Telxon PTC-921 DOS, User Manual

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Glossary
application
A PTC program that is designed to perform a specific
task for the user. Examples include route accounting,
payroll, price lookup, shipping, and inventory control.
application flash
EPROM
A flash EPROM that contains the PTC’s application
program.
bar code
A series of vertical bars and spaces used to encode
numeric or alphanumeric information. Bar codes are
designed to be read by electronic means such as
bar-code readers or laser scanners.
bar-code scanner
An electrical device that recognizes and deciphers
bar-code labels. When the scanner passes over the bar
code, it converts the bar code into electronic signals
representing data. The PTC can then enter this data
into files in its memory.
bps
Bits per second.
byte
A group of eight bits that acts as a basic unit for
information transfer and storage.
character
A letter, number, or symbol.
CTS
Clear-to-send signal. CTS indicates that the line
between a modem and a terminal device is clear for
transmission. CTS typically follows a raised request-
to-send (RTS) signal.
data
communication
The transport of encoded information from one point
to another.
display
The screen on the front of the PTC. It is used to show
data, prompts, and error messages.
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