| http://www.w3.org/ns/prov#value | - A particular advantage of the data terminal device 39 over state of the art terminals is that data storage and other functions may be minimized by removal from the hand-held device to a self-contained data terminal device of the LAN. Extensive portable computing power or customer information storage devices may, for example, be carried in another data terminal device 39 on the belt of the operator
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