Asked by: Rachel Mellish, Bromley

Advertisement

The best supercomputers fill rooms, cost millions, and are thousands of times faster than your computer at home. They are usually used for complex scientific problems involving lots of maths. They are used to predict the weather, model brains, or help predict the result of a nuclear explosion, for example. Some are used to test the strength of encryption (computer security) methods. They have been used to model the spread of swine flu, to predict climate change, and even to understand the Big Bang at the beginning of the Universe. But technology moves quickly. A top-end desktop computer today calculates at the same speed as a supercomputer 10 years ago.


Advertisement

Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.

Authors

Dr Peter Bentley is a computer scientist and author who is based at University College London. He is the author of books including 10 Short Lessons in Artificial Intelligence and Robotics and Digital Biology: How nature is transforming our technology and our lives.

Advertisement
Advertisement
Advertisement