Linux is an Operating System Just like windows XP,Windows 7 and Mac os. The communication Between Software and Hardware is Managed By Operating System only. Mainly Linux is an Platform and open Source Operating System based on UNIX.
Linux is an Kernel of Operating System. Kernal is the core Program of the Operating System. It is created in 1991 by Linus Torvalds.It is based on the Linux Kernel and can run on different hardware platforms manufactured by Intel, MIPS, HP, IBM, SPARC, and Motorola.
Linux & Windows comparison
|Type of OS||Open Source||Proprietary|
|Customization||High level of customization||Cannot be changed|
|Security||Excellent||Cannot be changed|