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Note: there is no way to know how Google does it. All we can do is speculate based on whatever information is publicly available. If you want to know, you have to ask them, not us. Google Docs' collaborative features are reportedly an offshoot of Google Wave. Google Wave, in turn, reportedly used Operational Transformation. As a very high-level basic ...


From Wiki: Distributed algorithms are a sub-type of parallel algorithm, typically executed concurrently, with separate parts of the algorithm being run simultaneously on independent processors, and having limited information about what the other parts of the algorithm are doing. It is inherent type of algorithm to be run independently with no requirement ...

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