OPERATING SYSTEM

 Os installation steps

 Android

Android Os in Windows 10 

Installing Android Studio

Linux os

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Ubuntu
Ubuntu 1

Back box

Kali linux
kali  1
CentOS 7 installing

A-Z OF KALI LINUX COMMANDS ARE

Windows

Windows 1.x    

Windows 2.x    

Windows 3.0    

Windows 3.1x  

Windows NT 3.x              

Windows 95      

Windows NT 4.0              

Windows98      

Windows 2000 

Windows Me   

WindowsXP                   Server 2003         

WindowsVista                Server 2008         

Windows7                      Server 2008 R2    

Windows Home              Server 2011        

Windows 8                      Server 2012          

Windows 10                  Server 2016     

Operating system  

Operating system  2

Star System