The systems ranked #1 since 1993

The systems ranked #1 since 1993
IBM Roadrunner (since 2008.06)
IBM Blue Gene/L (2004.11 - 2008.06)
NEC Earth Simulator (2002.06 - 2004.11)
IBM ASCI White (2000.11 - 2002.06)
Intel ASCI Red (1997.06 - 2000.11)
Hitachi CP-PACS (1996.11 - 1997.06)
Hitachi SR2201 (1996.06 - 1996.11)
Fujitsu Numerical Wind Tunnel (1994.11 - 1996.06)
Intel Paragon XP/S140 (1994.06 - 1994.11)
Fujitsu Numerical Wind Tunnel (1993.11 - 1994.06)
TMC CM-5 (1993.06 - 1993.11)