Intermec Janus 2010 Reference Manual page 13

Terms and Conventions
A reader is the JANUS 2010, 2020, or 2050 PC-compatible bar code reader.
An operator is anyone who runs applications on the reader.
A programmer is anyone who writes applications for the reader.
A normal PC is assumed to be a DOS-based PC/AT-compatible 386, with
a hard disk, 14-inch monitor, full-size keyboard, floppy disk drives, and
at least two communication ports.
Reader services are the functional abilities that distinguish the Intermec
family of PC-compatible readers from a normal PC. For example, the
reader's ability to decode bar code data as if it came from a PC keyboard
is a typical reader service.
Software interrupts are the synchronous triggering of interrupts used for
application program interfaces.
Library functions are the specialized Ada functions provided in the
language libraries that you use to invoke various reader services.
PSK means the Programmer's Software Kit and refers to both the
language libraries and this manual.
The Programmer's Software Kit Language Libraries is the disk shipped with
this manual. It contains sample programs and library functions for
interfacing with the reader.
• The keypad is the custom JANUS keyboard. Throughout this manual,
specific references to the JANUS keyboard use the term keypad.
• The keyboard buffer is the machine-level buffer that stores key presses
and scanned labels. Throughout this manual, specific references to this
buffer and its status flags use the term keyboard.
Before You Begin
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