The Raspberry Pi 2 Model B is the second generation Raspberry Pi. It replaced the original Raspberry Pi 1 Model B+ in February 2015.

Compared to the Raspberry Pi 1 it has:

•      ● A 900MHz quad-core ARM Cortex-A7 CPU
•      ● 1GB RAM

Like the (Pi 1) Model B+, it also has:

•      ● 4 USB ports
•      ● 40 GPIO pins
•      ● Full HDMI port
•      ● Ethernet port
•      ● Combined 3.5mm audio jack and composite video
•      ● Camera interface (CSI)
•      ● Display interface (DSI)
•      ● Micro SD card slot
•      ● VideoCore IV 3D graphics core

Because it has an ARMv7 processor, it can run the full range of ARM GNU/Linux distributions,

including Snappy Ubuntu Core, as well as Microsoft Windows 10.

The Raspberry Pi 2 has an identical form factor to the previous (Pi 1) Model B+ and has complete compatibility with Raspberry Pi 1.

We recommend the Raspberry Pi 2 Model B for use in schools: it offers more flexibility for learners than the leaner (Pi 1) Model A+,

which is more useful for embedded projects and projects which require very low power.