Computer MS-DOS Command is an Education Purpose Application. It has been written completely in the Bengali language. Here the MS-DOS commands are easily described. It is the easiest MS-DOS learning app for every computer user. This app is very good for every beginners user. MS-DOS definitions, features, how many types of files of MSDOS, how many types of commands are available and their extensions, exemplars and their work are well described in this application, which is very suitable for every computer beginner's user.