By default, it uses your system’s preferred command line, but it’s easy to switch between cmd.exe and PowerShell, and even to open a Bash terminal if you’re running Windows Subsystem for Linux.

The Windows Command Prompt command line is a simple Win32 application. It has the capability of interacting with any other Win32 application or object within the Windows operating system.

Back in '70s and early '80s, if you used a computer, you used a command line. DOS -- the disk operating system that runs atop IBM PCs -- used a command line interface, and that's what UNIX used too.