Check out this Fan-less Linux PC from Compulab.
It is roughly the size of a paperback book, and it only uses a small amount of power between 3 to 5 watts.
The fitPC comes with Linux pre-installed and is design to fit into spaces where conventional PC’s can’t.
According to Compulab the fit-PC is based on the company’s CM-iGLX computer-on-module (COM), reported as the world’s smallest LX800-based single-board computer when it was introduced. The module has a 500 MHz AMD Geode LX800 processor, and is equipped with 256 MB of DDR RAM and up to 512 MB of NAND flash.
The fitPC is designed to be virtually maintenance free and ideal for 24/7 use in the home or office.
The is no fan, but the fitPC is cooled by its black anodized case, which serves as a heat sink.
- 40 GB hard drive
- Dual 100 Mbps Ethernet
- SXGA graphics controller, resolution to 1920 x 1440
- 2 USB 2.0 high speed ports
- Audio in/out interfaces
- RS-232 serial port
- Single 5V power supply
- Dimensions — 4.7 x 4.6 x 1.6 inches (120 x 116 x 40 mm)
It is also possible to run Windows XP on the fit PC, and you can order it online for $285 (About £140) plus delivery.