Broadband and Hi-Speed Switched Data, was 1968 AT&T Print-Ad
- Mike Cowen <mcowen at mindspring dot com> wrote:
> The grossly loose definition of "broadband" gives me a headache.But in the historical context that the word "Broadband" was used,
> I see it used on anything above POTS. 56K leased line? Broadband.
> Bull! The world has moved ahead. My 12Mbps connection IS broadband.
a print-ad from almost 40 years ago in late 1968, I don't see anything
wrong with such use!
At that time, 56K WAS INDEED considered BROAD-band by those who used
such capabilities. Back then during the 1960s and even into the 1970s,
Bell Labs, AT&T Long Lines, and the BOCs were trying to expand on
a *switched* 56K digital data service, but at the time, the only
active customer, with the possible exception of some specialized
government/military departments, was Maw Bell herself, to exchange
billing data among the various toll offices and RAOs, and AT&T's
Kansas City MO Traffic Routing Administration HQ, for processing
long distance charges to appear on customers' bills.
AT&T actually wanted to be THE provider of switched 56K high-speed
(at the time) data, with these highly specialized dataphone modems
and a "Special Area Code" to be assigned, as well as special routing
and trunking, similar to what was in place for still-at-the-time
AT&T owned-and-provided TWX, and what AT&T also hoped to provide for
a switched 2-way Picturephone service.
There was very little customer interest at that time for such a
switched high-speed data service, although PRIVATE LEASED use was in
demand, and also Antitrust got involved to try to prevent AT&T from
having an almost total monopoly on providing both the SWITCHED aspects
of a public broadband or high-speed network, as well as the dataphone
modems for such. With the exception of AT&T's own "in house" use of
*switched* 56K data service for routing billing messages back and
forth between AT&T-LL in KC MO, and the BOCs and some of the larger
independents, such *switched* 56K data really didn't get off the
ground that much until the mid-1970s.
And even though today, most of us wouldn't consider 56K to be "broad"
band, back then in the 1960s, 56K *WAS INDEED* "broadband", and it
did begin the continued development of higher speeds and larger
bandwidth over time.
- DUV was a single T1 QPSK filtered in below R carrier's first mastergroup
When they did that they changed the name of the broadband channel from
MUR(Message Unit Radio) to DMUR( DIGITAL).
That whole T1 could have been one circuit for 1 customer or typically
subrate multiplexed with an unbelievable amount of combinations
including administrative stuff like taking one 2.4KBPS circuit and loopin
the data back remotely for testing.
From: email@example.com [mailto:firstname.lastname@example.org] On
Behalf Of David Lesher
Sent: Wednesday, February 28, 2007 12:49 PM
Subject: [coldwarcomms] broadband, was tower downed
Speaking on Deep Background, the Press Secretary whispered:
>I recall the entire Data Under Voice project delivered one, that's
> I agree! The grossly loose definition of
> "broadband" gives me a headache. I see it used
> on anything above POTS. 56K leased
> line? Broadband. Bull! The world has moved
> ahead. My 12Mbps connection IS broadband.
> Does anyone have a history of the circuits ever
> housed here, an what the maximum useable bandwidth was for each?
O N E, DS1 circuit.....
A host is a host from coast to coast.......
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433
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