2 problems with micro computers is the size of the screen and keyboard.
The Pc maybe could be a projection type that would project the screen onto a wall, floor or any flat surface.
Otherwise maybe it could be a thin flexible screen that can be rolled-up (folded and unfolded) to save space.
The keyboard could take the complete face of the micro computer, in that way it would be bigger, since the monitor screen would no longer be there if it was a thin flexible kind or if it was projected on-to a surface.
But there also already seem to be projected holographic keyboards, but I would not like to use those, I like "click keys".
There also seem to be micro computers that project the screen right onto your eyes, another possible way would be like when you look at a microscope and or at a telescope, you see the complete picture right onto your eyes thru a small tube, it is a kind or sort of projection, low power projection as the light levels are fairly low.