The Raspberry pi is a low cost single board minicomputer which can be used for learning the computer basics, programming and easy to interface with the embedded systems. The Raspberry pi is a mini computer which is designed in a single board with all the essential components required for running an operating system. The Raspberry pi board runs on ARM11 processor but is available at extremely cheap price. The board is provided with a RCA connector which can be used to connect it directly to a TV screen which is based on PAL and NTSC standard. The board also has a HDMI connector output which can be used to connect the board to a HD TV.
The board can be powered up from the USB port also but it is not recommended. The board has two USB2 ports where the keyboard and mouse can be plugged in. There is an Ethernet port which can be used to connect the board to a computer network. A video input port is also available with a Raspberry pi board which can be used to connect an external camera. The board also has a SD card slot and the Raspberry pi is designed to boot from the SD card.
The Raspberrypi board can boot a number of operating systems like Archlinux ARM, OpenELEC, Pidora, Raspbmc, RISC OS and the Raspbian and also Ubuntu.