[net.mail.msggroup] Estimate on size of Internet users

Gds@MIT-XX.ARPA (Greg Skinner) (10/30/84)

I don't have the original article, but I wanted to comment on a couple
of things.

First off, you weren't too far off in your estimates, Bandy, but
there's a couple of things you overlooked.

First of all, the VAX farm (the machines on the ninth floor of tech
square) are not on the Chaosnet.  They are on a 10 megabit Ethernet
connected via a gateway to the rest of the ARPAnet, so they are part
of the Internet.  In fact, these machines are on net 18.  Check the
map between room ne43-503 and ne43-504 (*sigh* -- my old office).

Secondly, a number of the machines on the Chaosnet are either lisp
machines or terminal concentrators.  I have a list of a few known
Chaosnet machines which have actual users on them somewhere so I can
get the details, but probably there are 50 machines less than your
estimate.  If the Athena machines are on the Chaosnet (at the time I
was still at MIT there were subnets allocated for them but I don't
know if the actual machines were connected, let alone up) that will
bump the number back up.  Otherwise, add them on as hanging off MIT's
network (pick any one you like, as all are addressable from each other
one way or another).  I just looked at the latest version of the NIC
tables and they are listed as being on net 18.

Did you include CMU's local net/campus net?  That will bump the number
up.  It's possible though that they are on the Internet already though
(net 128).

I don't know if the message has gotten out here yet, but someone
mentioned that IBM's internal VNET should be considered part of the
Internet also.

Who knows what things go on on the other side of the water?  (I'm
referring to whatever nets lie beyond london-gateway).  Also, what
goes on behind coins-gateway?

This is really a question for info-nets, so they're getting it.  If
someone has the original they should send it there also.

Have fun gang,

--gregbo
Gds@MIT-XX.ARPA
{allegra,cbosgd,ihnp4}!houxm!gregbo (UUCP)
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