Raspberry Pi redefines embedded computing for the masses. It can be the beginner’s step towards modern computing or the programming playground for kids or a handy tool for prototyping IoT gadgets.
In fact, the RPi kickstarted the new genre of SBC (single board computer). Since its inception, RPi encourages hobbyists to break the limits. Energy efficient ARM based PCs like Pinebook are direct descendents of Pi and it’s clones.
These ARM based SBCs primarily run Linux based operating systems. Mainstream distros like Ubuntu or SUSE are readily available. Moreover vendors and enthusiasts often come up with new customized OS to suit their needs.