Use Existing Infrastructure
Google's entire data factory is built on an extremely powerful software platform, utilizing many tens of thousands of computers (according to some estimates, as many as 450,000). This platform is surely one of Google's main strengths and its best protection against competition. Mobilizing an army of microcomputers takes money, but even with unlimited funds, quickly developing a system to manage all of those machines would be far more difficult. Google's ability to do so ensures high performance and makes all the difference. Computing power and software are mutually reinforced; the more data processed in a massively parallel architecture, the higher its efficiency.
Of course, Google could not have built all of this
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