Point of sale automatic back-up system and method

Details Point of sale automatic back-up system and method Point of sale automatic back-up system and method

1988-04-25

1989-10-10

Smith, Jerry

Boots, shoes, and leggings

3642681, 3642851, 36494392, 371 91, 371 82, G06F 1521

Patent

active

048736317

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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