User Guide

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Android 5.1
Android is an operating system for tablets and smartphones. The
extra speed and memory that the Pi 2 Model B has (compared
to the previous generation of Raspberry Pi devices) makes it
possible to run Android 5.1 “Lollipop” on the Pi 2. For more
information, see http://raspex.exton.se/
Ubuntu MATE
Ubuntu is one of the most-widely used versions of Linux. Ubuntu
MATE combines that operating system with a new desktop
environment, MATE. You can download a disk image of Ubuntu
MATE from https://www.raspberrypi.org/downloads/
No Operating System
If you are an experienced software developer and you do not
need to run any other applications, then you might be able to
run your code without installing an operating system. This is
called “bare-metal” programming and there are various tutorials
and samples available on the web to help you.