We have read of many governments beginning to show preference to use of FLOSS in procurement and internal use but only a few actively support/promote FLOSS as a national priority. Now Aragon, Spain, has set up an organization to promote FLOSS by encouraging businesses to adopt FLOSS and to facilitate adopting FLOSS.
“Open source has shown to be of greater technological efficiency in both public and private sector”
Amen! I recommend Debian GNU/Linux. It’s the right way to do IT. GNU/Linux is a cooperative product of the world, not just an OS but applications and data for clients and servers freely shared with a licence to use, examine, modify and to distribute the code under the same terms.