The Cybernetman Zero-Footprint PC has been on sale for as long as there has been "modern" clamshell-type laptops. I remember seeing ads for it in the back of business-related PC magazines at least 10 years ago.
The Z-F PC is made from a "standard" laptop motherboard and drives. The original intent of the thing was to be competition for diskless (i.e. no floppy) workstations back when those things were "all the rage." ;-)
And as for the "PC that looks like an A1200" bit, I think you are doing a bit of a disservice to the A500, Atari ST, Commodore 64, Vic-20, Atari 8-bits, Apple ][, and the original TRS-80, :-D
(Not to mention, Acorns, Sinclairs, and bunches of other "keyboard computers" I don't remember or don't know about.) :-)
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