User manual

Software
Operating system
The BEETLE /20 POS system runs under the MS-DOS operating system,
which has been especially enhanced for the POS applications. It is possi-
ble, for example, to display all the system messages on the cashier dis-
play. These messages have been adapted to fit the display format. You
will find more information on the following programs in the BEETLE sy-
stem manual and detailed descriptions in the relevant manuals.
Retail device interface
The retail device interface (RDI) is a standardized C programming inter-
face for the BEETLE POS system. It provides application programmers
with a simple means of programming retail-specific applications and devi-
ces.
Application programs
Application programs are avialable for the BEETLE /20 POS system that
meet retail-specific requirements. For more information, contact your WN
branch office.
Retail message handler
In a local area network (LAN), the retail message handler (RMH) transfers
data in the form of messages between processes on the local or remote
hosts, regardless of whether these hosts are SINIX or MS-DOS systems.
For more information, contact your WN branch office.
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