Sys-V init has long been the standard solution for booting. It's kind of easy to work with, it kind of works and everybody kind of knows it. However, being open minded, let's look at an alternative approach. There are quite a few alternatives. All of them focus on improving boot times. This is accomplished by starting and running different processes simultaneously and asynchronously. Doing type of boot attempts to use all (more) parts of the hardware simultaneously and avoid having to wait for slow hardware.