The Raspberry Pi is a series of single-board computers (SBC) developed by the Raspberry Pi Foundation, a UK-based charity organization. The Raspberry Pi is a low-cost, credit card-sized computer that can be used for various applications, such as desktop computers, media centers, servers, and others. It is also used in education to teach computer science and programming.

The latest version of the Raspberry Pi is the Raspberry Pi 5 Model B, which was released in October 2023

Other versions include:

– Raspberry Pi 4 Model B: Released in June 2019

– Raspberry Pi 3 Model B+: Released in March 2018

– Raspberry Pi 3 Model B: Released in February 2016

– Raspberry Pi 2 Model B: Released in February 2015

– Raspberry Pi 1 Model B+: Released in July 2014

– Raspberry Pi 1 Model B: Released in February 2012

There is also a Raspberry Pi Zero series of single-board computers, which are smaller and cheaper than the full sized Raspberry Pi boards. The latest version of the Raspberry Pi Zero is the Raspberry Pi Zero W.

The Raspberry Pi Foundation also has its own OS for the Raspberry Pi called the Raspberry Pi OS (formerly Raspbian) which is based on Debian Linux and so uses the same version names: Raspberry Pi OS – Raspberry Pi Documentation

There are also a lot of other options for OS to use with Raspberry Pi e.g. the RetroPie which can be used to transform into a retro gaming console using emulators.

The Raspberry Pi has inspired a lot of other similar SBCs e.g. Banana Pi, Orange Pi which are also good options for use in Embedded projects.

To build custom images for the Raspberry Pi, Buildroot, Yocto project or ISAR can be utilized.

The Raspberry Pi uses a config.txt file for all the system level configurations: config.txt – Raspberry Pi Documentation