Enabled by powerful advancements in base technologies, electronic point-of-sale (EPOS) terminals and devices, such as barcode scanners, portable data terminals and point-of-sale terminals are rapidly changing the way both financial and non-financial electronic transactions are conducted. Although these devices come in a wide variety of shapes and sizes with vastly differing functional capabilities, the shared objectives of all such systems is to bring greater convenience to consumers and to increase the operational efficiencies of businesses.