Command Prompt Vs Windows Powershell

CMD	PowerShell
Taskbar menu. Typing "cmd"	Taskbar menu. Typing "powershell"
CMD is legacy in other word CMD is old.	PowerShell as a shell is clearly intended as a replacement for CMD.
CMD does not run PowerShell commands	PowerShell does run or use CMD commands.
The command shell is a separate software program that provides direct communication between the user and the operating system.	PowerShell was actually built as several things: A mature , extensible automation platform and a modern administration shell. Windows PowerShell is a Windows command-line shell designed especially for system administrator.
CMD is used to create and edit batch (.bat) files (also called scripts).	PowerShell is used to create and edit script (.ps1) files.

Reference

• https://technet.microsoft.com/en-in/library/bb490954.aspx
https://docs.microsoft.com/en-us/powershell/