Earlier today, legendary video games developer John Carmack, the leader programmer for iconic titles such as Doom, Quake, and Wolfenstein 3D, made the case for what one might casually describe as a standalone graphics card.Imagine connecting a graphics card to a display and a power source and running diagnostics before installing it or running it standalone later when troubleshooting. Perhaps the card could have a compact Linux distro onboard, mused the iconic Doom developer. It could even come ...