1) IBM supercomputer 
Aquasar is a supercomputer system from IBM Research which uses hot water cooling to achieve heat efficiency. The Aquasar computers are built from three BladeCenter H chassis with a mix of QSS22 Cell based modules and HS22 Xeon based modules. It operates at about 6 teraflops, with a computational efficiency of about 450 megaflops/watt. The first Aq...