"Lenovo ThinkPad laptops have played a critical role aboard dozens of NASA space shuttle missions since 1995 and are currently used by astronauts in critical operations onboard the International Space Station."
Keith's note: This is not exactly accurate. Lenovo completed its purchase of IBM's laptop division - the original manufacturer of ThinkPads - in 2005. Only in the past year or so have these original IBM-manufactured Thinkpads on the ISS begun to be replaced with laptops manufactured by Lenovo. One recent example is this photo showing "a new [Lenovo] T61p laptop to replace the previous A31p as OCA Router in the Joint Station LAN/Local Area Network (JSL LAN).". Also, a ThinkPad flew on a shuttle mission in 1993 several years earlier than Lenovo claims.
2001: A Space Laptop, earlier post