Technology

The section runs from the invisible to the pocket-sized: how the internet works inside — DNS, IP, Wi-Fi — artificial intelligence from Turing to transformers, robotics from Unimate to the Mars rovers and cybersecurity through phishing and passwords. On the history side: the smartphone from the IBM Simon to the iPhone, the gadgets that changed everything from the Walkman to the Kindle, social media and the milestones of computing.

There is practical ground too — programming languages, Excel shortcuts, the basics of Bitcoin and blockchain — and rounds on engines: classic cars, electric cars, brands and motorcycles. No engineering degree needed: the questions reward everyday curiosity, and in Practice mode each answer can come with its explanation.

• Pick a field: internet, AI, gadgets, programming or engines.
• Answer and use Practice mode to read the why behind each one.
• Compare your score with whoever claims to understand tech.

Using technology is easy; understanding it gets tested here.