The PC1512 was very IBM compatible except for stuff that reprogrammed the 6845 into odd modes (IIRC) it had an odd 16 colour CGA mode that was available. The o

The PC1512 was very IBM compatible except for stuff that reprogrammed the 6845 into odd modes (IIRC) it had an odd 16 colour CGA mode that was available. The only other issues I can remember I think is the PSU was in the monitor so video connectors were odd and the keyboard/mouse were Amstrad custom designs so you couldn't swap with a regular PC or clone. I worked at Borland in the UK at the time and I don't remember any real issues. The other major vendor in the UK was Apricot which started out rebadging Victor machines and had a similar level of compatibility to the DEC rainbow (I think it used an 80186 as the CPU)