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Store System With Distributed Price Look-Up Function

IP.com Disclosure Number: IPCOM000046684D
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Strole, NC: AUTHOR

Abstract

This article describes a store system in which the price look-up memory is partitioned among point-of-sale terminals connected in a local area network. Price look-up requests go directly from an originating terminal to the terminal having the partitioned price look-up memory for the item identified in the request. In a conventional store system, a single price look-up memory exists in a store controller, to which several terminals are connected. Each time a price look-up request is generated at a terminal, that request must be answered by the store controller. If several terminals in the conventional system generate price look-up requests simultaneously, the store controller must "stack" those requests. Under high traffic conditions, a request near the bottom of the stack may not be serviced for an unacceptably long time.

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Store System With Distributed Price Look-Up Function

This article describes a store system in which the price look-up memory is partitioned among point-of-sale terminals connected in a local area network. Price look-up requests go directly from an originating terminal to the terminal having the partitioned price look-up memory for the item identified in the request. In a conventional store system, a single price look-up memory exists in a store controller, to which several terminals are connected. Each time a price look-up request is generated at a terminal, that request must be answered by the store controller. If several terminals in the conventional system generate price look-up requests simultaneously, the store controller must "stack" those requests. Under high traffic conditions, a request near the bottom of the stack may not be serviced for an unacceptably long time. The conventional solution to this problem has been to limit the number of terminals which can be connected to a single store controller. An alternative solution is to distribute the price look-up memory among a number of terminals connected to a single store controller in a local area network. Any terminal originating a price look-up request would contain the necessary logic to allow it to determine which terminal (including itself) contained the price look-up memory for the item identified in the generated request. The request would be transmitted directly to the appropriate terminal, and the...