Containers are not VMs despite often being used as such.

Windows will not run Linux-containers and Windows-containers will not run on Linux, just like the same restriction applies the other way around.

A container typically runs with the same kernel as the host, and therefore is restricted to be the same type of operating-system.

Thanks! I'm really curious what a Windows container is capable of. Many Windows programs are dependent on GUIs. I can imagine that Windows containers are a great testing platform. Let's see what else is possible.

Almost the entirety of ASP.NET and Windows Web Programming can be run headlessly.

StackOverflow is entirely built on top of Windows and .NET. Its not necessarily an inefficient platform, despite Window's reputation.

Isn't it supposed to work with Docker ? I thought Docker was *nix only ?

Docker isn't *nix only, MS and Docker have ported it to Windows 10 and Server 2016. You're able to use the same API between the various Docker hosts, but the binary compatibility is much the same as that between Linux and OS X versions of Docker.

> So there are windowsservercore containers. Are they real windows?

"Server Core is a minimal server installation option for computers running on the Windows Server 2008 R2 operating system. Server Core provides a low-maintenance environment capable of providing core server roles"

Basically server core is stripped down version of windows without a GUI[1] that will run most server roles, Powershell etc.

1. Well it kind of has a GUI, but one that is only capable of running cmd.exe and little else.