Unisys Corp, whose array of bought-in Unix systems have hitherto been based either on the 68000 family or on Computer Consoles’ bit-slice minis, yesterday diversified the line with an in-house 80386-based U6000 line to take advantage of the fact that there are several ways such machines can run MS-DOS concurrently with Unix. Unisys has gone for Locus Computing’s DOS Merge and the first U6000, the Model 50, will take 32 users and starts at $24,500 with ships next month; larger and smaller models are in Unisys’ plan.