Xerox's research arm Monday showcased its latest innovations, including erasable paper and tools that make documents "smart" by adding a deeper meaning to words and images.

Since its establishment in 1970, the Palo Alto Research Center, funded by Xerox, has created numerous technologies available on PCs today, including Ethernet, the graphical user interface (GUI) and the computer mouse. The laboratory, with other Xerox research facilities, is now trying to help its parent company and other start-ups by focusing on printing and other innvoations to access, use and secure electronic documents.

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