Introduction Of DOS

Introduction of DOS

The full name of MS DOS is Microsoft Disk Operating System. MS DOS is a Character User Interface Operating System (CUI). Which continuously provides new facilities to the user with some of its features. It was the most popular operating system. This was used in microcomputers. In 1984, micro computers with Intel 80286 processors were developed, then MS DOS 3.0 and MS DOS 4.0 versions were developed in them.



This operating system of Microsoft was called Disk Operating System because it mostly used to perform input-output tasks related to disk. MS DOS is an operating system that acts as an intermediary between the user and the hardware. Operating system does not control the hardware and software in the computer. establishes a mutual relationship between them. Due to which the user does not face any problem in operating the computer. In MS DOS, commands are given with the help of keywords. DOS performs that task by understanding these commands, and displays the output.


Functions of DOS


  • It takes commands from the keyboard and interprets them. 
  • It shows all the files in the system. 
  • It creates new files and allots space for the program. 
  • It renames a file in place of the old name. 
  • It copies the information in a floppy. 
  • It helps in locating a file. 
  • It tells searchers where the file is located on the disk, If we want the information to be printed in the file, it gives the printout of the information. 
  • It hides files and directories so as not to be seen by others. 
  • This permanently deletes the file.



Features of DOS


  • It helps in improving file management. Creating, editing, deleting files etc.
  • This is the user operating system. Any user can work in this operating system at a time.
  • This is an Attractor based FrontFace system. We can type letters (or characters in this operating system). MS-DOS is a 16 bit operating system.
  • DOS is simple text command operating system, it does not support graphical interface.
  • DOS uses text based interface and requires text and code to operate. 
  • Input in DOS is through basic system commands, ie the mouse cannot be used to operate it.
  • DOS does not support multiplexing in that it can only have one process in RAM at a time.
  • The maximum amount of available storage space is 2 GB.











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