Date: Fri, 6 Jul 2018 14:07:41 -0400
From: Bill Horne <bill@horneQRM.net>
Subject: AT&T Hires Ex-Tillerson Aide for D.C. Office
Margaret Peterlin takes new government-affairs role with telecom giant
after Michael Cohen controversy
By Drew FitzGerald
AT&T Inc. has hired former State Department chief of staff Margaret
Peterlin to a senior government-affairs role after a shakeup reshaped
the company's Washington office.
Ms. Peterlin, who served during former Secretary of State Rex
Tillerson's tumultuous 13-month tenure, is now the company's vice
president of global external and public affairs, according to a letter
sent to AT&T employees last month. She reports to General Counsel
-- Bill Horne (Remove QRM from my email address to write to me
Date: Fri, 6 Jul 2018 14:11:06 -0400
From: Bill Horne <bill@horneQRM.net>
Subject: Mysterious AT&T Building In East Dallas May Be Collecting
Data For The NSA, Report Says
A pair of reporters from The Intercept think they've unraveled some of
By Gus Contreras & Rick Holter
There's a big, chunky building with tiny, obscured windows along Bryan
Street in Old East Dallas that is a bit of a mystery. A pair of
reporters from The Intercept think they've unraveled some of that
For this week's Friday Conversation, KERA's Rick Holter talked with
one of those reporters, Ryan Gallagher, via Skype from
London. Gallagher's report in The Intercept says that the AT&T
building could be a spy hub for the National Security Agency.
(Remove QRM from my email address to write to me directly)
Date: Fri, 6 Jul 2018 08:54:50 -0400
From: Fred Goldstein <firstname.lastname@example.org>
Subject: Re: Frank Heart, Who Linked Computers Before the Internet,
Dies, at 89
On 6/30/2018 5:30 AM, HAncock4 wrote,
>> Mr. Heart's team built the gateway device for the Arpanet, the pre-
>> cursor to the internet. Data networking was so new then, they made
>> it up as they went.
> Not to minimize Mr. Heart's contributions, but the article credits
> several improvements to him which were actually developed back in
> the 1950s.
> " To this day, many of the principles Mr. Heart emphasized -
> reliability, error resistance and the capacity for self-correction -
> remain central to the internet's robustness."
The article doesn't credit Frank Heart with inventing those things. He
led the project that built the original ARPANET IMPs. Progress is built
on the shoulders of others who came before. Much of the computer world
doesn't take things like reliability seriously. BBN did.
I worked at BBN in the late 1970s (ARPANET era) and knew Frank, though I
didn't work for him. I was corporate telecom manager. Frank was a VP, a
Division Director by then. BBN had a rather unique culture, where
computing was combined with both usability (human factors) and
reliability. One of their products was the Pluribus TIP, a variant on
the ARP that was used as a terminal server (this was the 1970s). It
contained several CPUs. If one failed, the others would try to repair
it. It was famously hard to turn off, as its CPUs kept trying to restart
> "Data networking was so new that Mr. Heart and his team had no
> choice but to invent technology as they went. For example, the
> Arpanet sent data over ordinary phone lines. Human ears tolerate
> low levels of extraneous noise on a phone line, but computers can
> get tripped up by the smallest hiss or pop, producing transmission
> errors. Mr. Heart and his team devised a way for the I.M.P.s
> (pronounced imps) to detect and correct errors as they occurred."
The ARPANET data lines were leased from Ma by Uncle Sam, not us. The
backbone was type 303 modems on group channel (48 kHz wide) circuits,
providing 50 (not 56) kbps. This was truly exotic for the day, when the
Long Lines network was all analog.
> The Bell System, IBM, MIT, and others were experimenting with this
> back in the 1950s. For example:
> IBM developed a transceiver to transmit data, which included an
> error detection and correction protocol.
BBN used many then-existing ideas, including error detection via CRC.
IBM was already doing that. Modems go back much earlier, to the TWX
network if not earlier. Humorously, when I returned to BBN in 1994, some
of the new managers were spreading the idea that BBN had invented the
modem. Which was laughable if you knew about them, but by then the
history of the modem was not well known. BBN had in fact built a hack
(in the 1960s) called Datadial, which was a sort of pre-touchtone
interactive system, sort of like an auto-attendant, that remotely
decoded dial pulses! It didn't go anywhere. I never heard of it in the
1970s, but somebody found out about it in the 1990s and confused it with
Fred R. Goldstein k1io fred "at" interisle.net
Interisle Consulting Group
+1 617 795 2701
End of telecom Digest Sat, 07 Jul 2018