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ARPANET : The entire Internet fit on a piece of paper in 1973 !


The Internet today is a massive network of interconnected computers, and a far cry from the original ARPANET that gave birth to it in 1969.

On October 29, 1969, a UCLA team led by professor of computer science, Leonard Kleinrock, sent the very first message over the ARPANET, the computer network that later became known as the Internet.

There are over 1.1 billion websites connected to the Internet as of now, according to InternetLiveStats.

Just how big was the Internet in 1973, when it was still known as the Advanced Research Projects Agency Network?

Let’s put it this way: it fit on a piece of paper, as a small diagram of a series of connected computers.

Paul Newbury was a business manager at Carnegie Mellon University’s School of Computer Science (SCS) and he gave that diagram to his son, David Newbury, who was kind enough to share it with the rest of us!

Here’s what the Internet looked like in May 1973 – more than 43 years ago. 😀

As an added bonus, here’s what the Internet (ARPANET) looked like in its formation year in 1969:

The Internet (ARPANET) in 1969.

An educating video on ARPANET can be watched below, in two parts: (Part 1)

Followed by Part 2:

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