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Apple's Presto system is even more sophisticated than it appeared
Apple has recently started in-store testing of a Presto system, which can provide software updates to iPhone stock in Apple...
There’s a Mac mini running the software, and when a technician scans an iPhone box, the phone is added to the queue of devices waiting to be updated. But the system also lets staff know which phones still need to be updated, and checks daily sales records to determine how many need to be prepped the next day. When a customer buys a particular SKU (one example of a particular iPhone model, storage tier, and color), then the system prompts staff to update another one.
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