These web pages are hosted on a Digital Rainbow 100 running uIP and serving web pages over a SLIP connection.  The Rainbow 100 is a dual-processor system designed and manufactured by Digital Equipment Corporation during the 1980s as part of their personal computer initiative.  

The uIP stack is a complete TCP/IP stack designed for low-resource and embedded systems.  This implementation runs a SLIP connection over the Rainbow 100's serial line.  It is currently running a basic HTTP daemon, serving the webpages presented here.