The second board, Raspberry Pi 2 was launched in February 2015 costing $35, It offered support for the same OSs as in Raspberry Pi 1, however it added Windows 10 IoT Core to the list. Linux distribution was also boosted with Raspbian.
CPU power is higher at 900 MHz and memory has also been expanded to 1GB RAM. Extra stora can be added through a MicroSDHC slot.
In February 2016, the foundation launched the Raspberry Pi 3 also priced at $35. The product features a 1.2GHz 64-bit quad-core ARM Cortex-A53 CPU. All OSs previously mentioned are supported.
Pi 3 also has an integrated 802.11n wireless LAN and Bluetooth 4.1 and Low Energy connectivity, and despite being the latest version, it is still compatibility with Raspberry Pi 1 and 2.
Memory RAM sits at 1GB and extra storage can be added with the addition of a microSD card.
Over the years, Raspberry Pi boards have been used in several different applications. Developers have built arcade cabinets, robots of all sorts, beer can keyboards, weather monitoring stations, smart toilets, intelligent doorbells, and much more using the hardware.
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Raspberry Pi Foundation
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