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Overview, Pcdemo operational loop, Kdt750 apl guide – AML KDT750 Price Verification System User Manual

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KDT750 APL Guide

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Overview

PCDemo is a versatile client application designed to run natively on the AML KDT750 price
checking unit. PCDemo handles data capture and processing, network communication
with a database server, and all user interface and display attributes for data lookup and
verification applications.

The PCDemo software runs atop the KDT750's Linux® operating system based on kernel
version 2.6.22 along with other associated software.

Figure 5.1 - PCDemo Associated Software

In most environments, the PCDemo software is all that is necessary to implement price
checking, stock verification, employee time and attendance and customer self-services
with the KDT750.

PCDemo Operational Loop

PCDemo's internal software structure is event based around clock timeouts and data input
events.