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The board’s general purpose input/output pins, which can be used to connect additional circuitry to Pi and expand its capabilities.
The pins allow expansion boards to be added that work with motors, sensors and other peripherals - allowing the Pi to be used for a wide range of tasks, for instance controlling robots.
The 4GB SD card holding the image of the Debian Squeeze OS that runs on the board shipped to TechRepublic. The device has been tested with SD cards up to 32GB in size, and should work with most makes and models. A list of compatible cards is available on the Raspberry Pi wiki.
Here is the Pi ready for use. Everything needed to run the Pi and more is plugged in - the keyboard, mouse, SD card, Ethernet cable and micro USB jack.
The LEDs in the top left corner light up to provide information such as whether the board is working, powered up and sending and receiving data.
Look out for our next gallery showing our hands-on experience with the board and just what it's capable of.