I know that a command prompt has something to do with MS-DOS, but what is it?

A Command Prompt is where you enter text commands to the computer. This type of entry was used prior to graphical user interfaces (GUI). Although it isn’t often used in Windows, it is still the preferred method of input for certain operating systems like Linux and Unix.

The Command Prompt is still used sometimes during Windows installations and repairs, so it remains a good feature to be familiar with. To bring up Command Prompt, hold the Windows key and hit the R key (Win+R). This opens Run.

In the Run box, type cmd. This will open Command Prompt.

And there, if you know the correct commands, you can find or do just about anything. Below, when systeminfo.exe was typed in, the System Information was displayed.

~ Tiffany Garden