The affordable Raspberry Pi microcomputer — launched three years ago with the modest hope of selling a few thousand units — just passed the five million sales mark. The Raspberry Pi Foundation offers its no-frills Model A Pi for $25 and the Model B for $35. It recently launched the 6x faster Model B Pi 2 with double the memory for only $35. Originally intended as a cost efficient solution for students, the simple microcomputer is now being used to build everything from DIY computers to robotics projects. Continue reading Low-Cost Raspberry Pi Computer Enjoys Surprising Popularity