Lexicomp LC8600, Grid 3800?

I brought home another toy, and left a few behind. Lexicomp LC8600 Tiny, 1x5x9 inches DOS 5.0 computer with full keyboard and a 1 MB smartcard removable memory. Made by Sinolog in Tawain, around 1994, these are exUSN, and come up with some vague military display about incoming and signal strength, but soon fails when a serial port device doesn't respond. I brought home one from the ACP swapmeet (lame, nothing new) and left a few behind. Grid 3800 laptops, Tandy 1500, I left half a dozen of these behind. They didn't show up on the Tandy/Grid support site (which looks like it is about to GO). Laptops seem to take even more space than a full size computer (I hate to stack them, so I end up with one or one type to a box and its getting crowed. I either need to seriously reaarrage