Anyone else with an interest in Operating Systems (especially those used in medical equipment) might like to put on the kettle, make a cup of whatever, then set aside half an hour to wade through
this lot. Enjoy!
Then, having digested all that (or at least, picked up the
gist of it), we can kick off our own thread right here.
Feel free, by the way, to
meander into the related pathways of hardware drivers, common interfaces (
eg, RS-232, USB), the "slot"* technologies used in medical equipment, and all the rest.

*
By this I mean ISA, PCI, AGP ... and all our other favourites!