I am glad that we don’t have to choose between using the phone or using the internet now!!

Jahanvi Raycha
2 min readNov 4, 2022

Do you know ?!

…that early networking technologies mostly focused on connecting devices within close physical proximity to each other.

In the late 1970s two graduate students at Duke University were trying to come up with a better way to connect computers at further distance.

They realised the basic infrastructure for this already existed — PSTN ( Telephone Network). It was already a pretty global and powerful system by the late 1970s more than 100 years after the invention of the telephone. These Duke grad students weren’t the first ones to think about using a phone line to transmit data. But they were the first do it in a successful way.

They created an early predecessor to Dial-up connection called the USENET. The USENET was a UNIX based system that used a dial-up connection to transfer data through telephone modems.

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Dial-up connection used to function on telephone lines. In exactly the same way that one might pick up the phone and talk to someone, a modem would take the digital data from a computer, modulate it into an audio signal and send it to a receiving modem. This receiving modem would demodulate the signal from analogue noise, back into digital data for the computer to process.

So at that time user could either access phone call or Internet at a time!!

Pretty wild world, right?! 🎃

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Jahanvi Raycha

A curious kid who likes to meddle with computers and learn. I want to understand the universe and technology is my tool.