Ms- Dos is a Single User operating System . Micro Soft Develop & Introduced in 1981 . Ms-Dos is a Command line interface M S Dos Operating system is like a translator between user and computer hardware . Commands must be memorized and typed correctly.
           
            The file name consists of two parts primary name and secondary name extensions .The primary name may consist of 1-8 characters long and the extension in three characters. After you finished typing the command you press enter key. There are two types of commands is there .

  1. DATE  : This Command is used For Displays the Present Date.
  2. TIME    : This Command is used For Displays the Present Time.
  3. DIR      : This Command is used For Displays the Files and Directories list .
  4. DIR/P  : This Command is used For Displays the Files and Directories Page wise list.
  5. DIR/W : This Command is used For  Displays the Files and Directories width wise list .

  1. COPY CON : This Command is used to create anew file and also to store the information in ti.
                              C:/ > copy con srinu (file name)
                  Eg: -           Our college is best college in our university (data or matter)
                                          F6 or ctrl + z (save a file)       

7.TYPE      :- This command is to open an existing file
Eg:-  C:\ Type srinu (file name)
8.REN     :-  This command is used to rename or change an existing file name
1.      Eg:- REN    SRINU     Vasu
2.      Syn:- REN    Old file name    New file name
      9 DEL   :- This command is used to remove files .
                         Eg: Del  CNU
10.MD        : This Command is used for Creating a Directory.
3.      Eg:-  C:\ MD College (Directory name)
11.CD        : This command is used to open and existing directory.
4.      Eg:-  C:\ CD College (Directory name)
     12. RD      : This command is used to remove the Directories .

13.COPY   : This command is used to copy the matter from one file to another file.

5.      Eg:-  C:\  Copy Venky Ramana