$25 computer is barely larger than the average USB stick

“While pictures show only a processor, USB and HDMI port,
Raspberry Pi’s website actually reveals its other secret powers:
128MB of SDRAM, OpenGL ES 2.0, 1080p HD decoding, composite output,
SD card slot and other flavors of Linux such as Iceweasel and
Python. A 12 megapixel camera sensor can also be connected (as seen
in pic above).”