I was once asked why computers are called “computers” when they do so much more than compute numbers. A modern PC browses the internet, plays audio and video, generates beautiful graphics for video games and movies, simulates and predicts complex weather patterns and epidemiological risks, brings architectural and engineering blueprints to life, and much more.
The reason computers can do all of this because all these problems can be expressed as numerical equations, and the computer’s CPU—its central processing unit—is actually little more than a simple calculator.
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