Walsh worked on the Xerox PARC Bravo word processor with Charles Simonyi and Ben Wegbreit. Followed Wegbreit to Convergent, Ardent and E.piphany. Brilliant arch

Walsh worked on the Xerox PARC Bravo word processor with Charles Simonyi and Ben Wegbreit. Followed Wegbreit to Convergent, Ardent and E.piphany. Brilliant architect and coder.