We used Coherent- I remember it was much cheaper than SCO UNIX / Xenix (back in the days when you had to pay $500 for the C compiler). Here's an ad showing thi

We used Coherent- I remember it was much cheaper than SCO UNIX / Xenix (back in the days when you had to pay $500 for the C compiler). Here's an ad showing this: https://virtuallyfun.com/category/coherent/ https://virtuallyfun.com/category/coherent/ The install time claim is interesting- I'm sure this comes down whether it optimizes floppy drive reads (for example, read a track at a time).