

This opens up the device to even more use cases that one couldn’t even have imagined when the original device made its debut in 2012. Unlike previous iterations of the single board computer (SBC), there are now three variants of the Raspberry Pi 4 with 2GB, 4GB and 8GB of RAM. The latest addition to the family is the Raspberry Pi 4 Model B that now features a quad-core 1.5Ghz processor. The Pi Zero W was added to the Zero family in February 2017, featuring a 1GHz processor, 512MB RAM and support for Wi-Fi and Bluetooth, again all for just over £15 (around $19, AU$27) with accessories. The Pi Zero was released in 2015, and the Pi and its 'essentials' kit is available for less than £10 (around $13, AU$18).

There have been several Pi developments over the past few years. These are the best Linux training providers and online courses.
