Not best value, but a neat simple device you could power from a USB and leave on all the time, just needs a WiFi network too connect to.
The Compute Stick is an entire PC crammed into a small-ish HDMI dongle. Inside you’ll find a quad-core Bay Trail Atom processor, 2 GB of RAM and 32 GB of onboard NAND storage. There’s also Wi-Fi 802.11n support, as well a Bluetooth and expandable microSD card storage.
As HDMI doesn’t really provide enough power to run anything powerful, the Compute Stick needs to be powered by micro-USB. One day Intel hopes that sticks like this could be powered solely by HDMI, but the current HDMI spec doesn’t allow this. As the micro-USB port is used for charging, Intel has also included a full-sized USB port on the dongle for accessories and the like.
The version of the Compute Stick that comes with Windows 8.1 with Bing will set you back $149, making it a very affordable option for light computing tasks. A Linux version of the stick will come in at just $89, though the internal hardware has been downgraded to just 1 GB of RAM and 8 GB of storage.
For those that want to buy the Compute Stick, Intel will release it on the market at the end of Q1 2015.