FILE SYSTEM

                                    TYPES OF FILE SYSTEM IN WINDOWS

    Arrange the files in o/s in hdd is called file system

1. FAT 12 - FILE ALLOCATED TABLE 12 
2. FAT 16 -FILE ALLOCATED TABLE  16
3. FAT 32 - FILE ALLOCATED TABLE  32
4. NTFS - NEW TECHNOLOGY FILE SYSTEM

                                    TYPES OF FILE SYSTEM IN LINUX

1. EXT 2 
2. EXT 3

4. SWAP 

• FAT 12 used in DOS operating system 
• all FAT are used in DOS 
• arrange the files in o/s in hdd is called file system
•  if we see windows fat in Linux o/s ,it shows V FAT  

               ACCORDING TO MODE, OPERATING SYSTEM ARE OF TWO TYPES

1. CLI MODE - COMMAND LINE INTERFACE 
2. GUI MODE - GRAPHIC USER INTERFACE

• DOS o/s are used through CLI MODE
• WINDOWS o/s are used through GUI MODE
• last DOS version were coming in windows XP

OPERATING SYSTEM ARE ANOTHER OF TWO TYPES

1. CLIENT O/S -  it is a single PC used by only one person

2. SERVER O/S - it is also a single PC , but it is connected through many PC 

                              OPERATING SYSTEM ARE ANOTHER OF TWO TYPES 

1. STAND ALONE - NO NETWORK CONFIGURATION  

2. NOS -  NETWORK OPERATING SYSTEM 

              CLIENT O/S                                             SERVER O/S    

1. WINDOW 2000                          -                      WINDOW NT 

2. WINDOW 2000 professional        -                      WINDOW 2000   

3.WINDOW XP                              -                      WINDOW 2003

4.WINDOW VISTA                        -                       WINDOW 2008

5.WINDOW 7                                -                       WINDOW 2008 R2

6.WINDOW 8                                -                       WINDOW 2012

7.WINDOW 8.1                             -                        WINDOW 2012 R2   

• THESE ALL ARE NOS O/S.
• BUT THE FIRST VERSION OF SERVER OPERATING SYSTEM IS WINDOWS NT 3.1
• WINDOWS NT 3.1 IS THE SERVER O/S OF WIN 95 , WIN 98 OR WIN 98 SE.