High performance supercomputer using Windows
Look Ma! the 10th most powerful computer in the world runs on Windows Server!
Windows HPC hits top 10 among supercomputers - Network World
Windows HPC Server 2008, a 64-bit system that shipped Nov. 1, came in at No. 10, achieving 180.6 teraflops with 77.5% efficiency at the Shanghai Supercomputer Center and Dawning Information Industry Co.