PRIMERGY is Fujitsu's brand name for x86-architecture designed servers. The brand name PRIMERGY represents a range of servers from single-socket over dual-socket to quad-socket systems. Eight socket systems are branded differently with "PRIMEQUEST," whereas Fujitsu servers in the UNIX/Mainframe world, also known as SPARC systems, are named "Fujitsu M10" and mainframes "BS2000."