The kernel can be seen as the bridge between software and hardware and the central module of the operating system, it is responsible for process management for application execution, memory management, allocation, and input output, device management through the use of device drivers and system call control.
Originally developed in 1991 by Finnish Programmer Linus Torvalds, Linux is an exceptionally robust and reliable kernel, which combined with the GNU system is most commonly used for Internet servers, mobile phones, tablets mostly known as Android devices. Additionally, the use of GNU/Linux as an alternative operating system, for personal computers such as desktops or laptops, has also been growing over the years, with several million users having already discovered the benefits of it.
It is highly efficient, very fast and any hardware device works out of the box, only on rare occasions you will need to install a device driver, The 64 bit version of Manjaro with the Xfce desktop, boots up in only a few seconds and uses only 200MB of memory to run.
Linux systems are very secure and not affected by the huge amount of Windows viruses, trojans, worms or malware out there. Anti-virus software is not required.