Windows Server is a group of operating systems designed by Microsoft that supports enterprise-level management, data storage, applications, and communications. Previous versions of Windows Server have focused on stability, security, networking, and various improvements to the file system. Other improvements also have included improvements to deployment technologies, as well as increased hardware support. Microsoft has also created specialized SKUs of Windows Server that focus on the home and small business markets. Windows Server 2012 R2 is the latest release of Windows Server, and focuses on cloud computing.
The following table describes the current documented versions of Windows Server.
Emphasizes cloud support with features such as improved IP-addressing, updated Hyper-V, and a new file system (ReFS). Windows Server 2012 R2 includes enhancements to virtualization, management, storage, networking, virtual desktop infrastructure, access protection, information protection, web services, and application platform infrastructure.
Includes a number of additional security and administrative features shared with Windows Vista: a re-written networking stack, improved Firewall, additional .NET Framework technology, and numerous improvements to the kernel, file, and memory systems.
Integrates a number of features from Windows XP. Includes improved networking installation and integration, improved web services, and increased capabilities for DTFS.