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On 30/03/14 19:52, Eion MacDonald wrote: > > On 30/03/2014 15:54, Martijn Grooten wrote: >> companies 'forced' to run XP are those running >> some kind of custom-made software package that only runs XP > space shuttle, international space station, (warships legacy weapons > systems? perhaps) ect. Space shuttles have been decommissioned. Since they predate XP considerably, if they had XP it was part of an upgrade, and it wasn't in avionics. http://history.nasa.gov/computers/Ch4-1.html The International Space station runs Debian for key systems, they migrated from Microsoft Windows. It predates XP as well, and I think it had OS2 early on. Wikipedia says: "The operating system used for key station functions is the Debian version of Linux.[160] The migration from Microsoft Windows was made in May 2013 for reasons of reliability, stability and flexibility.[161]" I imagine updating a space station is considerably harder than upgrading most businesses, and much more costly. I suspect licensing fees are not a major component, possibly launch costs for new hardware are immense. This leaves things like SMCS-NG, which was a management decision the engineers wanted *nix for naval control systems. That was sold on basis they would provide periodic updates to cover the maintenance issue of COTS. Although given the time-scales that ship refits and maintenance usually work to. Alas, and perhaps unsurprisingly, I couldn't immediately fine technical detail of the latest version of SMCS-NG. -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq