Batocera.linux is a free and open-source Linux distribution specially made for retro gaming, developed by a team from France in 2016. It can be installed on USB flash drive or SD card and turn any computer/nanocomputer into a full-fledged retro gaming console temporarily or permanently. That means it does not do any change on your computer.

In fact, we are using Linux OS every day and everywhere, but most people don't realize it at all. The reason is that the only area that Linux has not conquered is the desktop operating system, which most people can touch is either Windows or Mac. Even Linux has dominated the Internet of things, mobile phone and data center, it's still considered out of the mainstream if it doesn't succeed in the desktop OS field.

Ubuntu has become bloated and extremely slow (even has started to follow the trend of quickly refreshing the version number, and indulges in this disgusting behavior) for a long time, and its requirements for hardware configuration has far exceed those of Windows now. In other words, running an Ubuntu OS today means making your computer fan spinning at a full jump all the time. The noise of fan alone is painful enough. As a result, more and more people are abandoning Ubuntu, meanwhile increasing lightweight alternatives has emerged and are emerging, and many of them are even able to run smoothly on a USB device, not to mention HDD or SSD. Thereinto, Manjaro is one of the best.

The kernel of Linux is responsible for handling all the interactions between CPU and outside world, deciding the order of all programs share the processor time, effectively managing hundreds or thousands of processes to share the limited memory available in system, skillfully planning the data transmission as a whole to save the time consumed by CPU on waiting for the slower hard drive. Therefore, in-depth study of the most essential parts of the Linux kernel lets you completely understand what makes Linux run normally and why it can work well in various system distributions.