This diagram is only a very simplify unix history. There are a lot more unix
like systems than those listed in this chart, maybe 10 times more ! Some
years ago, every electronic company has it's own unix system. For example,
my company was selling an unix, derivated from another one, and those two
are not in this chart because there are too small. So this diagram is only
the upper part of an iceberg, with a penguin on it ;-).
It's simplified. It's also 9 feet in length! Three meters for those of you
who are Imperially challenged. It makes a neat poster, although I'm not
sure where I can hang a 9 foot poster.
Obligatory Contact Info
You have my permission to link freely to any entry here. Go
ahead, I won't bite. I promise.
The dates are the permanent links to that day's entries (or
entry, if there is only one entry). The titles are the permanent
links to that entry only. The format for the links are
simple: Start with the base link for this site: https://boston.conman.org/, then add the date you are
interested in, say 2000/08/01,
so that would make the final URL:
You can also specify the entire month by leaving off the day
portion. You can even select an arbitrary portion of time.
You may also note subtle shading of the links and that's
intentional: the “closer” the link is (relative to the
page) the “brighter” it appears. It's an experiment in
using color shading to denote the distance a link is from here. If
you don't notice it, don't worry; it's not all that
It is assumed that every brand name, slogan, corporate name,
symbol, design element, et cetera mentioned in these pages is a
protected and/or trademarked entity, the sole property of its
owner(s), and acknowledgement of this status is implied.