But note that the Climet claim is qualified by "a box in which a phone
handset could be placed". How were the Bell modems interfaced?
-----Original Message-----
From: Eric Smith [mailto:eric_at_brouhaha.com]
Sent: Thursday, February 20, 2003 2:16 PM
To: cctalk_at_classiccmp.org
Cc: allain_at_panix.com
Subject: Re: FYI: 25th Anniversary of Ward Christensen's BBS
I wrote about (binary) data transfer by modem:
>> At least as early as 1965 IBM sold equipment that could do this,
John Allain wrote:
> Some more date/a:
> ""the first model of the first commercial modem," a box in which a phone
> handset could be placed, allowing a computer to say "beep beep" to
> another over long distances. Lee was almost right. He actually had the
> second model of the "magnetic/acoustic coupler," manufactured for
> Tymshare, Inc. by Climet Instruments about 1966"
> --
> http://membres.inforoots.org/dguardiola/Lee_Felsenstein/CMP-mails.htm
The Bell 103A modem was introduced in 1962. I suspect that it was the
first commercial modem.
The date that's harder to place is when the 103A was first used for
computer-to-computer data transfer, as opposed to teletype-to-teletype
or teletype-to-computer communication.
Received on Thu Feb 20 2003 - 14:45:01 GMT