<div dir="ltr">what was the time frame for CSS Mail?<br><div><br></div><div>v</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jul 4, 2018 at 2:43 PM, Dave Crocker <span dir="ltr"><<a href="mailto:dhc2@dcrocker.net" target="_blank">dhc2@dcrocker.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">with Tom's permission.<br>
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-------- Forwarded Message --------<br>
Subject: Re: Early Internet history<br>
Date: Wed, 4 Jul 2018 09:41:02 -0400<br>
From: Tom Van Vleck <<a href="mailto:thvv@multicians.org">thvv@multicians.org</a>><br>
To: Dave Crocker <<a href="mailto:dcrocker@bbiw.net">dcrocker@bbiw.net</a>><br>
<br>
<br>
> On Jul 3, 2018, at 10:17 PM, Dave Crocker <<a href="mailto:dcrocker@bbiw.net">dcrocker@bbiw.net</a>> wrote:<br>
> <br>
> I'm trying to make a point of notifying anyone I mentioned during the<br>
> interview, mostly in case I got something wrong. I've already had<br>
> two corrections to notify the Collective folks about...<br>
<br>
Hi Dave, very interesting!<br>
<br>
(I am not a fan of podcasts.. too linear. My superpower is READING and<br>
I can read faster than I can listen.)<br>
<br>
There are a few things I would have said a little differently than you did.<br>
<br>
MAIL<br>
<br>
The late Noel Morris and I did the CTSS MAIL command together, and he<br>
should not be forgotten.<br>
We wrote MAIL because it had been proposed in a MIT Comp Center memo by<br>
Louis Pouzin, Glenda Schroeder, and Pat Crisman, all of whom worked at<br>
MIT on CTSS for F. J. Corbató. We wanted to use it. Nobody had time to<br>
write MAIL though.<br>
Noel and I were users of CTSS and asked if we could write MAIL and<br>
contribute it to the system.<br>
<br>
Your description of CTSS MAIL mixes implementation and function.<br>
Functionally, a user wrote a small text file, and then typed MAIL MY<br>
FILE M1416 786 to send it. (Files on CTSS had two-word names. User<br>
addresses on CTSS had a "problem number" like M1416 and a "programmer<br>
number" assigned by the Comp Center.) The recipient would be notified if<br>
his MAIL BOX was non-empty, and could view it with the PRINT command.<br>
Each user's MAIL BOX file had the file mode "private" meaning that only<br>
the account owner could read or modify it -- except that<br>
system-privileged programs could do so.<br>
<br>
As we were implementing MAIL, we wrote the absolute minimum program that<br>
would work.<br>
There were many suggested features, options, etc. We left them out.<br>
Idea being to get it working, and put features in later after community<br>
discussion.<br>
<br>
The essential features of MAIL were<br>
- user to user, i.e. personal<br>
- asynchronous<br>
- file based, persistent<br>
- secure<br>
<br>
Messages were<br>
- identified by sender and date<br>
- limited in size to one disk record: 2592 BCD characters<br>
<br>
We didn't send between computers because we had only one computer. We<br>
didn't send graphics because nobody had a graphics terminal. We didn't<br>
have SUBJECT any other mail headers; but conventions rapidly sprang up.<br>
We limited messages in size because disk space was very scarce and<br>
expensive.<br>
<br>
<br>
Multics<br>
<br>
As the editor of Multicians.org I am sometimes vexed by people's<br>
theories about Unix. Ken and Dennis would probably not have "gone off on<br>
their own" and written Unix if Bell Labs management had not dropped out<br>
of the Multics project in 1969. The size and scope of Unix was a result<br>
of the resources available to its creators. Ken and Dennis made useful<br>
contributions to Multics and never questioned its scope or elaborateness<br>
in my hearing while they worked on the system. Ken was one of the<br>
smartest people I have ever met: his clarity of thought and writing were<br>
an inspiration, and he was a great programmer and colleague.<br>
<br>
<br>
regards, tom<br>
<br>
<br>
<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">New postal address:<div>Google<br><div>1875 Explorer Street, 10th Floor</div><div>Reston, VA 20190</div></div></div></div>
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