Life before the internet

Where were you on October 29, 1969? On that date 40 years ago, engineers at UCLA and Stanford Research Institute sent data to one another, across 400 miles, using an electronic network known as the "Arpanet" that had been developed by the US Department of Defense.

Although it was used primarily by engineers and scientists for its first few years, this network was to become the world–changing phenomenon that we now call the internet, a piece of technology that it's…