DOS Commands-

          Instructions given to the computer to work are called commands. These are the common words between the computer and the user. It gives orders to the computer system to work.

Following are the major types of DOS Command −

Internal DOS Command:-

             An internal command is an MS-DOS command that is stored in the system memory and loaded from the command.com or cmd.exe. The illustration shows how commands contained within command.com are part of the command.com file. However, with the external commands, each of the commands is their own separate file.

External DOS Command:-

             An external command is an MS-DOS command that is not included in command.com. External commands are commonly external either because they require large requirements or are not commonly used commands. The illustration shows each of the external commands are separate files. However, the internal commands are all included in the command.com file.