I want to learn SharePoint. But I do not know how to obtain the SharePoint foundation. I did research to find out that the SharePoint foundation comes with servers for free, but which one? What do I buy to obtain the basic version of SharePoint?
It depends on your OS and choice. You can install SharePoint Foundation 2010 on following OS
Windows Server 2008 R2, Windows Server 2008 Service Pack 2, Windows Server 2012 and on Windows 7 and SharePoint Foundation 2013 on windows
Windows Server 2008 R2 SP1, Windows Server 2012, Windows Server 2012 R2.
If you have Windows OS cals(license) then you dont need extra license for the sharepoint foundation as it is covered under os. check this one: What are the licensing requirements to implement SharePoint Foundation in an extranet environment?
Here are the best link to approaching to SharePoint for newbie: