4 ms·
Didn't they usually have 2 air gaps with acoustic transmission in the loop, though?
by geon 12y ago
Didn't they usually have 2 air gaps with acoustic transmission in the loop, though?
- drzaiusapelord 12y agoby 1981 or so the acoustic coupler was antiquated. The modem had a controller that handled telephony stuff like dialing, hanging up, etc and a you'd just plug your POTS rj-11 straight into it.
- mikeash 12y agoMy very first modem was a 300bps box that plugged straight into the phone line. I remember being frustrated that I could read faster than the text came in, even though I was only 8 years old or so at the time. When we got a 2400bps modem, it was fantastic that stuff came in faster than I could read it. Bringing the conversation back to space, one of the first things we did with the modem was dial into some public NASA BBS (long distance!) and download pictures from Voyager.