Intermec Janus 2050 User Manual page 400

G
Glossary
postamble
A field of data that is sent after the data in a message. It is typically used to tag
transactions rapid processing by the host, and it expands the data field (record)
length. Similar to the preamble.
preamble
Predefined data that is automatically appended to the beginning of entered
data. Similar to postamble.
protocol character
See ASCII control character.
protocol handler
A protocol handler provides communications services that let a device send
data to other devices by transmitting and receiving data as specified by the
communications protocol.
PSK
JANUS Programmer's Software Kit. A library of software functions for creating
applications on the JANUS.
PSS
Program Statement Separator character. The PSS indicates the end of an IRL
program statement. It separates individual IRL program statements from one
another in a block of IRL program statements. PSS must not be defined the
same as the EOM.
PutDisk
One of two programs you can use to change the contents of the ROM drives.
PutDisk places an image file created with MakeDisk on the device. You can run
PutDisk only on the device.
RAM
Random access memory. Memory that can be written into, or read, by locating
any data address.
RAM drive
A disk drive that exists only in extended memory. You create, read, write, and
delete files on a RAM drive the same way you can on a hard disk drive. RAM
drives are faster than hard disk drives because the contents of a RAM drive are,
by definition, always resident in RAM. The contents are destroyed when you
cold boot the device.
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