From: Ralph Corderoy <ralph(a)inputplus.co.uk>
> This is also were typesetter C comes from.
What's that?
An evolution of C past the fairly early version in V6, but prior
to V7. Reputedly the name comes from extensions done for doing troff.
See:
http://ana-3.lcs.mit.edu/~jnc/history/unix/CChanges.txt
http://ana-3.lcs.mit.edu/~jnc/history/unix/COChanges.txt
for some historical documentation.
Noel