Computer : Disk Operating System

                           DOS 

DOS stands for Disk Operating System.

Introduction : It's an operating system. This is introduced by 'Microsoft Corporation Limited'. Under this operating system we learn about how can we operate the general CUI commands for the operating system.

CUI & GUI

CUI : - CUI stands for 'Character User Interface'. Under this interface a user can easily interface with any command with writing mode.

There are common operating system which works under this interface -
1.  DOS
2.  LINUX
3.  UNIX

GUI : - It stands for 'Graphical User Interface'. It is graphical fly out command which helps the user to activate and operate any command with the help of fly out drawing.

There are common operating system which works under this interface -
1.  MS Word
2.  MS Excel

There are two types of commands used in DOS -
1.  Internal commands
2.  External commands

* Internal commands : - Commands those are internally loaded into computer memory are called the Internal commands.
Example : DATE, TIME, VOL, VER etc.

* External commands : - Those commands externally loaded into computer memory are called External commands.
Example : Format, XCopy etc.

Commands of DOS : -

1) Time - To display the current time in DOS operating system.
Syntax : Time (enter)

2) Date - To display the current date in DOS operating system.
Syntax : Date (enter)

3) Vol - To display volume serial number of currently using drive.
Syntax : Vol (enter)

4) Ver - To display the current version of working drive in computer.
Syntax : Ver (enter)

5) Copy Con - To create a new file in DOS operating system.
Syntax : Copy Con File name (enter)

6) Type - To open your existing file created by DOS operating system and saved in computer.
Syntax : Type File name (enter)

7) Ren - To change your current existing file name with another one.
Syntax : Ren Old file name  New file name (enter)

8) Del - To delete any existing file from specific drive.
Syntax : Del Existing file name (enter)

9) MD - To create a directory
Syntax : MD Directory name (enter)

10) CD - To change the directory and enter into specific directory.
Syntax : CD Directory name (enter)

11) CD.. - To get out of one directory
Syntax : CD.. (enter)

12) CD\ - To get out of all directories
Syntax : CD\ (enter)

13) Exit - To exit from Disk Operating System
Syntax: Exit (enter)

14) Color - To change the color of display in DOS operating system.
Syntax: Color/

15) Color/? - To know about color changing & color code.

Wild Card Character

Introduction : It is symbolic special character, which is used to find the specific file with its first character.

There are two types of wild card character -
1. Single Unknown character (?)
2. Show all characters (*)

* Single Unknown character - To specify the file with single character value.

* Show all characters - To search the file with all specify characters.
Syntax : Dir P*.*       (i)
                Dir ???F    (ii)
Structure of Commands
    👇👇👇👇👇
You can see an image here later...

MD Question Paper (enter)
CD Question Paper (enter)
Question Paper>MD Section A (enter)
                            MD Section B (enter)
CD Section A (enter)
Question Paper/Section A> MD Unseen Passage (enter)
                                                MD Poem (enter)
CD Poem (enter)
Question Paper/Sector A/Poem> Copy Con My Mother (enter)
I Love my mother
She is my ideal
She works so hard for us
{Type any poem like above} (F6)
Copy Con Make me A promise Dad (enter)
Make me promise Dad
Said his father a little lad
{Type any poem like above} (F6)
CD.. (enter) once again CD.. (enter)
Question Paper> CD Section B (enter)
Question Paper/Section B>Copy Con Letter Writing (enter)
To,
     The principal
      GBSSS, Delhi
{Type full letter} (F6)
Copy Con Notice (enter)
It is hereby notified of tomorrow evening student has to come with his parents {Type full Notice} (F6)

● To get out of all directories press CD\ (enter) and then cls (enter)
● To show your existing directories and files (Structure) press Tree/F Name of main directory (enter)

To create a new file in created structure : - (Take above structure)

For example, we have to create a file in Poem directory -
Syntax : Question Paper/Section A/Poem> Copy Con Twinkle Twinkle little star, How I wonder what you are
{Type full poem} (F6)

To delete any directory or file
Syntax : Question Paper/Section A/Poem> Del My Mother (enter)

To delete all files from one directory
Syntax : Question Paper/Section B/* (enter)