>In the early days of PC C compilers Microsoft and Watcom were far from the top dogs. The market leaders were now-forgotten compilers like Mark Williams C, Lattice, and Manx.
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>Depends on what you mean by "early days". If you're talking pre-1987, you might be right. 1987 and beyond, Microsoft and Watcom were big ones (and yes, Lattice was a big one as well). Microsoft was becoming a corporate standard for C compilers by 1987 - the source-level debugger (CodeView) was a big reason.
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>I know the history from 1987 and beyond pretty well - before 1987 I'm very hazy.
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>Wasn't Mark Williams on other platforms? Again, my memory before 1987 is hazy.

I am thinking of when C compilers were in their first phase, circa 1984 or 1985. Youngun ;-)