The Mail Gets Smarter: 2005:
As automation advanced, more and more mail was handled primarily by machines rather than humans. But these machines were not, at first, particularly clever. They could do only one, rather simple, repetitive task.
As USPS software grew more sophisticated, however, machines began to multitask -- they were able to deal with different types of mail pieces and various contingencies. This introduced new levels of efficiency and nimbleness to a Postal Service that was larger than ever.