... for warehouse operations. In the logistic anddistribution area, the benchmark study of L.L. Bean, the outdoor sportswearorganization and mail-order house, along with five other warehouse bench-mark ... in the United States,20% of households account for 80% of all purchases. Similarly, in the casesof video rentals in the United States and United Kingdom, 20% of house -holds with VCRs generate ... by only 40% of the Americanhouseholds equipped with PCs, while the other 60% relied on x86-basedcomputers (or even older). Similarly, only 48% of the American PC house -hold users were using...