More than eight million boards have been sold since day one. Raspberry Pi models are a creation of the Raspberry Pi Foundation, a UK charity that wants to promote computer science studies.
CBR lists all the Raspberry Pi boards in order of release.
Raspberry Pi 1 Model A
RPi 1 Model A is the lower-spec variant of the Raspberry Pi portfolio of boards, with 256 MB of RAM, one USB port and no Ethernet port.
Due of its small size, the board is light and consumes less power, having been mostly used in embedded projects, especially around robotics.