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Routing TCP/IP, Volume I (CCIE Professional Development) by Jeff Doyle

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Bicycles with Motors

One of the difficulties of decentralized computing is that it isolates users from one another and from the data and applications they may need to use in common. When a file is created, how is it shared with Tom, Dick, and Harriet down the hall? The early solution to this was the storied SneakerNet: Put the file on floppy disks and hand carry them to the necessary destinations. But what happens when Tom, Dick, and Harriet modify their copies of the file? How does one ensure that all information in all versions are synchronized? What if those three coworkers are on different floors or in different buildings or cities? What if the file needs to be updated several times a day? What if there are not three coworkers, but 300 people? ...

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