Point of sale automatic back-up system and method
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United States of America Patent
Stats
-
Oct 10, 1989
Grant Date -
N/A
app pub date -
Apr 25, 1988
filing date -
Apr 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A point-of-sale system includes a plurality of terminals in which one of the terminals is selected to be a primary terminal and the remaining terminals are selected to be secondary terminals. Program means in the primary terminal will store the data messages received from the secondary terminals and transmit the received data messages to memory means in each of the secondary terminals. Each secondary terminal will determine if it has received all the data messages. If there is found to be a discrepancy in the number of data message received, the secondary terminal will notify the primary terminal of such a discrepancy and the primary terminal will supply the missing data messages.
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