Didaktik Kompakt
It was manufactured from 1991 to 1993 by Didaktik Skalica.
The computer was inspired by or was successor to Didaktik M. Hardware is based on Z8400 @ 4MHz.
Version 1.5, 2.3
ULA1515xM1-216 uses the ULA1 ULA1, so the display had a square shape instead of a rectangle and there was some incompatibility of timing.
WD3765 or WD2797 was used as a 3.5 "Floppy controller.