Abstract: A system and method for automated processing of articles include a plurality of storage units separated by aisles through which customers can pass to select articles for processing. The selected articles are identified by tags applied thereto from identification record members provided to the customers, and are placed on conveyors located adjacent to the storage units for transportation to a checkout station where they are collected, their prices are totalled, and payment is made. The articles are then further transported to a plurality of bagger stations where they are bagged and released to the customer after verification that payment has been made.

Abstract: A system and method for automated processing of articles include a plurality of storage units separated by aisles through which customers can pass to select articles for processing. The selected articles are identified by tags applied thereto from identification record members provided to the customers, and are placed on conveyors located adjacent to the storage units for transportation to a checkout station where they are collected, their prices are totalled, and payment is made. The articles are then further transported to a plurality of bagger stations where they are bagged and released to the customer after verification that payment has been made.

Abstract: A system and method for providing an automatic back-up primary terminal for a cluster of secondary terminals. The primary terminal and the back-up primary terminal are coupled over a communications network to the secondary terminals so that data from the secondary terminals is received simultaneously at both the primary and back-up primary terminals. Either the primary or the back-up primary terminal can function as the active provider of services to the secondary terminals. When either one of the primary terminals becomes inoperative, control is automatically switched to the other one which becomes the active provider of the services. The primary terminal which is the active provider of services keeps a log file (on a disc file) of special data which is to be "backed up" or transferred to the other primary terminal when that other primary terminal becomes operative again. The special data, in the embodiment described, related to price look-up and inventory totals associated with retail terminals.

Abstract: Power failure protection for data processing apparatus is provided by the use of a standby power module which supplies power to the data processing apparatus when the normal supply is interrupted. Since damage to the data processing apparatus may result in the event of a sudden power failure, power failure protection software controls the data processing apparatus to cause periodic sampling of the state of the standby power module. During the time that the standby power module is operating, a timer in the data processing apparatus operates to measure the total time that said standby power module has operated since its last recharge. When said total time exceeds a predetermined amount which is based upon the minimum time during which the standby power module can supply power to the data processing apparatus, the power failure protection software initiates an orderly power shutdown of the data processing apparatus, in order to avoid a sudden power loss which might result in damage.