Which Model of Raspberry Pi is Right for Your Project? 

The Raspberry Pi model was initially made for teaching purposes in developing countries. Its design attributes and extremely low price-points allowed it to be marketed to developing countries and schools nationwide; however, it outshone expectations and attracted many firms from other markets. The initial release in 2012 created a huge impact amongst tech enthusiasts since they could benefit from using these small one board computers in their own projects. It started being used in professional (industrial) projects related to robotics (like weather monitoring etc.). This phenomenon gave birth to the idea of using these small computers in personal projects to achieve a higher level of efficiency at a cheaper rate.
Author: Darhan Saami