Back in the minicomputer days, we encouraged customers to defrag now and then. I spend one long night at a customer's in Utica, New York, defragging a 25 MB dis

Back in the minicomputer days, we encouraged customers to defrag now and then. I spend one long night at a customer's in Utica, New York, defragging a 25 MB disk. The whole doctrine of defragging seemed to lose popularity somewhere in the 1990s, though.