with 20 other companies, including Compaq, Digital Equipment Corporation, MIPS Computer Systems, Groupe Bull, Siemens, NEC, NeTpower, Microsoft and Santa Cruz Operation. Its intent was to introduce workstations based on the MIPS architecture and able to run Windows NT and SCO UNIX. The group produced the Advanced RISC Computing (ARC) specification, but began to unravel little more than a year after its formation. Entertainment industry For eight consecutive years (1995–2002), all films nominated for an Academy Award for Distinguished Achievement in Visual Effects were created on Silicon Graphics computer systems. the technology was also used in commercials for a host of companies. An SGI Crimson system with the fsn three-dimensional file system navigator appeared in the 1993 movie Jurassic Park. In the movie Twister, protagonists can be seen using an SGI laptop computer; however, the unit shown was not an actual working computer, but rather a fake laptop shell built around an SGI Corona LCD flat screen display. The 1995 film Congo also features an SGI laptop computer being used by Dr. Ross (Laura Linney) to communicate via satellite to TraviCom HQ. The purple, lowercased "sgi" logo can be seen at the beginning of the opening credits of the HBO series Silicon Valley, before being taken down and replaced by the Google logo as the intro graphics progress. Google leased the former SGI buildings in 2003 for their headquarters in Mountain View, CA until they purchased the buildings outright in 2006. Once inexpensive PCs began to have graphics performance close to the more expensive specialized graphical workstations which were SGI's core business, SGI shifted its focus to high performance servers for digital video and the Web. Many SGI graphics engineers left to work at other computer graphics companies such as ATI and Nvidia, contributing to the PC 3D graphics revolution. Free software SGI was a promoter of free software, supporting several projects such as Linux and Samba, and opening some of its own previously proprietary code such as the XFS filesystem and the Open64 compiler. SGI was also important in its contribution to the C++ Standard Template Library (STL) with many useful extensions in the MIT-like licensed SGI STL implementation. The extension keeps being carried by the direct descendant STLport and GNU's libstdc++. Acquisition of Alias, Wavefront, Cray and Intergraph In 1995, SGI purchased Alias Research, Kroyer Films, and Wavefront Technologies in a deal totaling approximately $500 million and merged