Science · Discoveries that changed the world

How was the Internet born out of the Cold War?

Before it connected the planet, the Internet was meant above all to survive a Soviet attack.

From ARPANET to the Web4 min read5 partsQuiz of 8 questions
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Andrew "FastLizard4" Adams from United States · The SDS Sigma-7 The First Computer to be Connected to the Internet (6294434636) · CC BY-SA 2.0 · Wikimedia Commons
Part 1 of 5 · freeIntroduction

Like Rome, the Internet was not built in a day. In its early days, the network was just a handful of computers at the U.S. Department of Defense. It grew out of technical progress, but also out of the spying ambitions of the two superpowers of the Cold War. By the late 20th century, dial-up access had reached most American homes, and web browsing soon followed.

By the end of the millennium, the technology was so widespread and so new that some analysts predicted a global meltdown if computer calendars failed to roll over to the year 2000: the fear of the Y2K bug. In the 21st century, instant messaging, social media and artificial intelligence have changed the way people communicate online once again. How did a military project become part of everyday life for the whole world?

The rest is in the Sophia app.The remaining parts, the open-book quiz and the full glossary. Free to start; Premium unlocks everything.
  1. 2A network built to survive an attack
  2. 3From ARPANET to the "internets": packet switching
  3. 4Modems, subscriptions and the birth of the Web at CERN
  4. 5From e-mail to the iPhone: the Internet in daily life
Open-book quiz8 questions whose answers are in the text.
Glossary7 terms explained in a tap.
30 languagesThe same course, from French to Japanese.

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