I-Data 5250 ALLY - Manual (Page 233)

Page G-3 GLOSSARY
D
Data stream Information transmitted between the
host system and the 5250 ALLY.
DB-25 A plug with 25 male or female pins.
Decimal A base 10 numbering system.
Default Formatting configurations that are
present and are used automatically
when no other information is available.
Delimit To mark the beginning and end of a
character string.
Diagnostic A routine designed to verify the
operation of a system and to find a
malfunction in a device.
DisplayWrite/400 An IBM word processing application
that supports bolding, underlining and
overstriking.
DPA Display printer adapter.
DSC Data stream compatible. A pre-SNA
protocol.
E
EBCDIC Extended Binary Coded Decimal
Interchange Code. An eight bit
character code.
Emulation A hardware or software product
imitating the function of another
hardware or software product.
EPROM Erasable programmable read-only
memory. The storage medium for the
5250 ALLY firmware.
Esc Escape control character. A non-graphic
(unimaged) code that signals the
transmission of control information to
the 5250 ALLY.
Extended ASCII Some printer manufacturers have
implemented their own version of 8 bit
transmission. Extended ASCII allows
128 additional characters to be
displayed by the printer.