Linux makes for greener computing
The UK Government reckons that servers with Linux installed are greener than those running Windows.
That's because, according to a report by the Department of Government Commerce about Open Source Software Trials in Government, open source software has lower hardware requirements and needs less frequent hardware refreshes.
In particular, it said that: "for equivalent open source and Microsoft Windows systems, the open source system will require less memory and a slower processor speed for the same functionality." It points out that Windows needs a hardware refresh every three to four years, while a Linux box might need a new platform as infrequently as every six to eight years - half as often.
Source: Techworld