Xerox released a system similar to the Alto

In 1981, Xerox released a system similar to the Alto, the Xerox Star. It was the first commercial system to incorporate technologies that have subsequently become commonplace in personal computers, such as a bitmapped display, window-based GUI, mouse, Ethernet networking, file servers, print servers and e-mail. The Xerox Star and its successor the Xerox Daybreak, despite their technological breakthroughs, did not sell well due to its high price, costing $16,000 per unit. A typical Xerox Star-based office, complete with network and printers, would have cost $100,000.