sentences:  In the end, Xerox PARC, which prided itself upon building hardware 10 years ahead of its time and equipping each researcher with the hardware so they could get started on the software, enabled Xerox to bring the product to market 5 years too early, all throughout the 1980s and into the early 1990s.The custom-hardware platform was always too expensive for the mission for which Star/Viewpoint was intended.Apple, having copied the Xerox Star in the early 1980s with Lisa, struggled and had the same poor results.