Looks a lot like in my cave, exception being that I store DIMMs in the anti-static trays in which they shipped in (or in anti-static bags in case I salvaged them out of a system) and motherboards and graphics card in their boxes because I almost never throw them away.
THAT SIR is an IBM Transnote. Next to their tablet that they released like 17 of them in 1992, the transnote was one of the first tablet computers released in 1998 by IBM. The transnote was weak graphics and ram wise (128 MB ram) but was solid as shit to do documentation. The pen that was with it, any stylus will do, can be used to write on that pad of paper, the original pad with 99.99999% of the original paper, and all that is written can be put in MS FUCKING WORD MAN. THAT SHIT IS SICK. The screen is also "touch" in the same way the cheap android tablets are "touch screen", however it was meant for a stylus as where the shitty androids are meant to be touch screens as advertised and are just garbage.
The transnote is a bad design, too early to be a good design in its time, but is still an amazing piece of technology and is a piece of computing history. Worth 600 bucks working with everything but the pen so if you want it ;P
Coming to think of it @FaunCB ... since you posted a lot about you trying out weird and odd systems and you had the IBM Transnote (only ever saw one - yours the second one) in the pics...
You clearly need to try and get hands on a NeXTcube or NeXTworkstation if there are still any working ones out there. NeXTstep was a insanely great OS - though ... it might almost be easier to try and get a copy of the x86 version to try running it on either suitably old hardware or in a VM which can be configured with "old enough" hardware configurations.
I have tried. They have been rare to work and if they do they run amazingly well and are basically brand new. They are so rare and hard to find that I couldn't afford one if I found one to buy. I'll have better luck building one. I'm more interested in Amiga's and PowerPC / RISC machines.