5bed7162_ning_and_Sustaining_Technology__WHAT
[HOW] Many open-source, Linux-based operating systems are designed to use a minimum of system resources. In other words, they’ll run just fine with an older processor and 128 MB of RAM. For example, Xubuntu is an officially supported variant of Ubuntu that needs less speed and less memory than the main distribution. Fluxbuntu is even less resource-intensive, but it’s not officially supported by Canonical (the folks who develop and maintain Ubuntu). Bear in mind that making the switch to Linux often requires retraining for your systems librarians, your regular staff and your patrons. On the other hand, Linux distributions, such as the ones mentioned here, are becoming increasingly user-friendly, so the transition from Windows isn’t as hard as it used to be. For more information, see our article on Open-Source Software in Libraries. [WHAT] 
Install an open-source operating system
Maintaining and Sustaining Technology
WHAT