Signed book: Portraits of Success: Impressions of Silicon Valley Pioneers by Carolyn Caddes. First edition. Palo Alto, CA: Tioga Publishing, 1986. Hardcover with dust jacket, 11.5 x 11.25, 138 pages. Signed and inscribed on his biography page in red felt tip, "For Bill Daul, a good friend! Doug Engelbart." The signed page also bears a black facsimile signature, and the half-title page is signed by the book's author. In fine condition, with scattered wear to the dust jacket.
This book was personally given by computer visionary Douglas Engelbart to his friend and colleague, Bill Daul, who was a member of Engelbart's pioneering research team at SRI International. Engelbart is remembered for founding the field of human-computer interaction and for his development of the computer mouse. His original patent for an 'X-Y Position Indicator for a Display System' was filed in 1967 and introduced at the Augmentation Research Center (ARC) of Stanford Research Institute (SRI) in Menlo Park, California, the next year, in 'The Mother of All Demos.'
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