Importance

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Abstract

In response to a command by a local computer system, a copy of a remote document is downloaded onto a remote update network device from an origin network device. A predetermined time after the remote document copy is downloaded, the update network device interfaces with the origin network device to compare the remote document with the remote document copy. If the remote document has been modified since it was copied onto the update network device, the remote document copy is updated to reflect the modifications. When the local computer system reconnects to the network, the updated remote document copy may be downloaded into the memory of the local computer system if the remote document copy on the update network device is different than a local copy of the remote document stored in the local computer system.

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First Claim