What is Windows PowerShell?

Question

What is PowerShell?

I have Windows 7 installed, and I noticed that it has PowerShell. I remember installing this a while back when signing up for Windows Azure, but only

Answer 1

The value of PowerShell is less a benefit for end-users, and much more a benefit for system maintainers, because they know it will be installed on every machine that has Windows 7 or later.