This
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Jan 1979 Ice Storm
near Mattawan, just off the NYC RR line, this is what the old phone lines looked like. Before digital signaling each call needed its own line. The capacitative and inductive loading was honorific; there was much signal loss over distance.
Today most of the wires you see hanging on poles are power lines communication is by broadband cable -- or micro wave.
This is 2 years before the announcement of the IBM PC (5150).
Bell 103 telephone modems first appeared in 1962 -- at 300 bps
OM/2 Ektachrome
I took this just to have an image for today's blog post. dennissylvesterhurd.blogspot.com/2023/09/were-switching-t...
I haven't been on much lately but there are several reasons -- my computer was acting up and wouldn't let me on the sites I visited most -- turns out to be a modem problem but spent a fair amount of money finding out what it wasn't and I had a cold/flu combination began last Sunday and still hasn't gone away completely. To top it all off, my cell phone got stolen as well. I'm back.
I bought this device in January 1988 at a Radio Shack shop in San Francisco (Calif) for 600 $ .
I used it to access my mailboxes in France across TTY protocol !
The transmission rate : around 300 bps accross a MODEM and phone lines…
At that time for E-mailing, we mainly used the BSS (Bulletin Board Service), the ancestor of our current mail boxes.
Its size, an A4 sheet.
In fact, it was the tablets ancestor…
* * *
J'ai acheté ce Tandy 102 en janvier 1988 dans un magasin Radio Shack à San Francisco (Calif) pour 600 $ .
Je l'ai utilisé pour accéder à mes boîtes aux lettres en France via le protocole TTY !
Le taux de transmission : environ 300 bps à travers un MODEM et des lignes téléphoniques…
A cette époque pour l'E-mailing, nous utilisions principalement le BSS (Bulletin Board Service), l'ancêtre de nos boites mail actuelles.
Sa taille, une feuille A4.
En fait, c'était l'ancêtre des tablettes…
I had to use this null modem connector often in my early business life.
So this one is truly a heavy one with the full set of 25 pins connected and wired.
The weight is around 100 grams.
This shot is focus stacked out of 9 shots.
www.youtube.com/watch?v=QGh7AXw3tHM
Modem Tattoo "Pixel Creation"
Marketplace : marketplace.secondlife.com/p/Modem-Tattoo-Pixels/13629431
In World Store : maps.secondlife.com/second.../Tinys%20Haven/180/81/45
This is a printer stand for my wife. The printer sets on top, a ream of paper can set on the shelf below, and underneat will be the modem and routers from our fiber optic Internet source. The holes prove ventilation, and a syrge protector powerstrip will be mounted on the other side.
We had a new modem delivered, and the old one was in the box, on the coffee table, waiting to be returned to BT.
Max decided to investigate, knocked it off, wriggled under the box and played under it until he tipped it over - then he lost interest! LOL
To be more accurate the device is a G.hn to Ethernet Managed Demarcation Point.
Taken for use in a blog post. dennissylvesterhurd.blogspot.com/2023/09/four-shirts-and-...
The last two Computer History Museum photos I'll post; today's topic is "Communications" This acoustic modem used the telephone handset to send and receive sounds that represented one and zero bits. As you can probably guess, they were quite slow, but they still allowed data to be transmitted over long distances.
#modem by @93mdm #93mdm #mdm #mcz #encs #ibs
#streetart #streetartist #urbanart #urbanartist #graffiti #wall
An acoustic coupler is an interface device for coupling electrical signals by acoustical means—usually into and out of a telephone.
The link is achieved through converting electric signals from the phone line to sound and reconvert sound to electric signals needed for the end terminal, such as a teletypewriter, and back, rather than through direct electrical connection.
Prior to its breakup in 1984, Bell System's legal monopoly over telephony in the United States allowed the company to impose strict rules on how consumers could access their network. Customers were prohibited from connecting equipment not made or sold by Bell to the network.
It was not until a landmark court ruling regarding the Hush-A-Phone in 1956 that the use of a phone attachment (by a third party vendor) was allowed for the first time.
In 1963 Robert Weitbrecht developed a coupling device that converted sound from the ear piece of the telephone handset to electrical signals, and converts the electrical pulses coming from the teletypewriter to sound that goes into the mouth piece of the telephone handset.
This General Electric 300 Baud Modem is from the 1980s. I remember entering Weather Channel text that moved across the bottom of the screen from the local cable company. You would type…and then wait for the text to appear (watching the actual channel), to make sure you didn’t make a mistake.
Early times in my 20’s.
My daughter's ADSL as she has gone to stay overnight with friends, so I have about 20 hours to try and pay a quick visit to my Family!!!
When I was at the Dr's last week, camera went along for a check up as well.
One of the receptionists saw me clicking away and actually asked me if I did weddings!!! Yeah right, with a point and shoot!!!!!
I liked the glass brick wall in the surgery and of course it looked nothing like this!!!!
Of course, now that I have got the ADSL for a short while, its going to be even harder to go back to the internal modem.
Think I will have to go back to clinging to the ceiling until my new one arrives.
BACK TO CLINGING TO THE CEILING, DIDN'T EVEN GET IT FOR 20 HOURS WAHHHHHHHHHHHHHHHHHHHHHH