What is a file synchronizer?

Abstract

Nloblle computing devices intended for disconnected operation, such as laptops and personal organizers, must employ optimistic replication strategi~for user files. Unlike traditional distributed systems. such devices do not attempt to present a "single filesystem" semanti~users are aware that their fles are replicated, and that updates to one rephca till not be seen in another until some point of synchronization is reached (often under the user's exphcit control). A variety of tools, collectively called file synchronizers, support this mode of operation.