I remember installing a horribly expensive Ethernet card on an Altos SCO Xenix box, which required recompiling the kernel to install the drivers (on 5 inch flop

I remember installing a horribly expensive Ethernet card on an Altos SCO Xenix box, which required recompiling the kernel to install the drivers (on 5 inch floppies). I was convinced this would never work, but magically it did! Things were a lot tougher back in those days. Oh, and Token Ring, where you could almost see the token crawling around the ring, like an arthritic snail.