*Nix isn't the only OS to have a command line interface.
Let's also not forget that Windows NT/2000 has a very capable CLI. I use it for probably 50% or more of my work including launching apps, basic file operations (moving, copying, renaming), scripting, word processing, and browsing the network. Microsoft has made a genuine effort in Windows 2000+ and beyond to make many/most things scriptable. This means there's not much you can't do from a Win32 command line these days.
In other words, Windows NT/2000 is MUCH more than a GUI on top of DOS. It features a fully-functional CLI too!
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Getting Mom onto Internet a Sisyphean Ordeal
IIS is the frequently maligned Internet Information Server from Microsoft. I think you meant ISS: International Space Station.
*Nix isn't the only OS to have a command line interface.
Let's also not forget that Windows NT/2000 has a very capable CLI. I use it for probably 50% or more of my work including launching apps, basic file operations (moving, copying, renaming), scripting, word processing, and browsing the network. Microsoft has made a genuine effort in Windows 2000+ and beyond to make many/most things scriptable. This means there's not much you can't do from a Win32 command line these days.
In other words, Windows NT/2000 is MUCH more than a GUI on top of DOS. It features a fully-functional CLI too!