I am using Windows Server 2003 R2. We have about 100 PCs which are connected to this server and by using network connection. We are planning to upgrade it to other newer version. So I was looking for comparison between Windows Server 2003 R2, 2008 R2 and 2012.
All of the articles talk about new features like Hyper-V, Hyper v Replica, Active Directory, IIS etc. But I am not using any of these. I am mainly using it as a file server. So, I need to know the features comparison related to it.
How are the 3 server versions different?