CST in Glasgow and Micronas in Glenrothes. There were some other notable successes such as the large Sun Microsystems plant in Linlithgow and the Digital Equipment Corporation semiconductor manufacturing plant in South Queensferry where the pioneering 64-bit Alpha 21064 and its derivatives were made. Digital also opened an office in Livingston, developing their flagship OpenVMS operating system. Digital's South Queensferry facility, opened in 1990 at an estimated cost of , was eventually sold to Motorola in 1995. At the time, Motorola itself employed 4,000 people at its own semiconductor plant at East Kilbride, as well as operating a cellular telephone plant at Easter Inch. Rodime of Glenrothes pioneered the 3.5 inch hard disk drive in 1983 and spent subsequent years defending its patents against (and collecting royalties from) Seagate, Quantum, IBM and others. The manufacturing sector grew to such an extent that at its peak it produced approximately 30% of Europe's PCs, 80% of its workstations, 65% of its ATMs and a significant percentage of its integrated circuits. Today The heavy dependency on electronics manufacturing hit Silicon Glen hard after the collapse of the hi-tech economy in 2000. Viasystems, National Semiconductor (now Texas Instruments), Motorola and Chunghwa all laid off substantial numbers of employees or closed factories completely. The effects of the Viasystems closure are still felt in the Scottish Borders today. Digital sold their Alpha facility to Motorola who eventually closed it down. Motorola also closed their factory in Bathgate and the substantial NEC plant in Livingston was also closed. In 2009 Sun ceased manufacturing at its Linlithgow plant and, after successive years of downsizing, NCR ended all manufacturing in Dundee. However, there are many promising signs as well as a recognition that diversification away from electronics and manufacturing produces a more balanced and stronger economy. There is also more of an interest in encouraging home grown talent. To diversify away from electronics and manufacturing, the development agencies now see global services as being a potential area of growth, but there is also substantial interest in the software development industry, including Rockstar North, developers of the market leading Grand Theft Auto series. There is also a dynamic and fast growing electronics design and development industry, based around links between the very strong universities and indigenous companies and projects like the Alba Campus. The software sector has also notably attracted Amazon.com to set up a software development centre in Edinburgh,