The Second Edition manual has a section titled "User Maintained
Programs" listing the following utilities and games: basic, bc, bj, cal,
chash, cre, das, dli, dpt, moo, ptx, tmg, and ttt. In the Introduction,
the reader is asked to consult their authors for more information.
Does anyone remember whether at the time these were installed in the
system-wide /bin directory, or whether they were only available in their
owners' home directories?