So in computer science we have this thing called "distributed systems". It turns out that even if you buy the biggest and most powerful computer there is, all i

So in computer science we have this thing called "distributed systems". It turns out that even if you buy the biggest and most powerful computer there is, all it takes is one problem with that one machine to make your system stop working. Instead, what people do these days is use lots of little computers to work together. That way, when one of them breaks, the system keeps going. Believe it or not, that's how google dot com works!