Difference between PowerShell and DOS Command Prompt

Already posted, but not in this forum. What makes them different? And can I use the same commands with them?

http://technet.microsoft.com/en-us/library/cc196356.aspx - MSDN PowerShell Guide

I just started reading up on PowerShell myself. You can use dos commands, unix / linux commands, and powershell's own scripting language in it. That MSDN link has tons of great info to get you started.

Thanks! Didn't know you could use Unix/Linux commands. That is really cool.