Silicon Valley pioneer and computer industry pioneer William Hewlett died Saturday in California at the age of 87. It was he, together with his friend David Packard, who created the future legendary Hewlett-Packard, with which Silicon Valley began, in 1938 in his parents’ garage. The company was then worth $538. Last year, HP split into two independent companies: HP itself, with an annual turnover of $48.8 billion, and Agilent Technologies, $10.8 billion. Mr.