Hybrid
A hybrid is a PC that performs both the functions of the LinuxMCE Core server as well as the function of a Media Director.
There can only be one Core server in a LinuxMCE home automation/multimedia network. Therefore, a hybrid will take the place of the Core server -- there cannot be another Core or hybrid on the network. There can be, however, other Media Directors.
A hybrid is usually meant to be in your main entertainment area, connected directly to your AV devices in that area.
As such, it is closest to a true Home Theater PC, and has almost identical requirements.
Because it serves as the Core, it needs the hardware components of a core PC:
Fast processor with lots of RAM Large hard drive capacity, or an external hard drive, or a NAS storage device in the network or directly attached. TV video card. A second NIC card for connecting to the rest of the home automation/multimedia network.
Obviously, you need lots of expansion slots.
In addition, since it is sitting in your living room (usually), it must have the characteristics of a Home Theater PC:
Stylish case Low heat emission, if possible Quiet fans, or better yet, a fanless heat seak
Also, as the Media Director, it provides all the output to the AV devices and therefore requires:
a good video output card (nVidia recommended), preferably with an S video output jack or other appropriate video out jack.
a good sound card with the appropriate surround sound output (5.1 or 7.1 jacks)
Lastly, it will provide the input for that room, so ports for wireless, infrared, bluetooth, or USB-UIRT remote controls must be integrated or available on the PC.
In short, a hybrid Core/Media Director has the requirements of both, so must be a super-duper media computer. The highest end Home Theater PCs are advisable if you choose a to run a hybrid PC in your LinuxMCE system.