Andy Grove, a Silicon Valley pillar, dies at 79

Andy Grove, the refu gee from Hungary who became one of the pillars of Silicon Valley and, as both scientist and executive, was a principal figure in the rise of the Intel Corp. and a symbol of the world-wide computer revolution, died Monday. The death was announced on the company's website. It did not give a cause or a location. He had been diagnosed with prostate cancer and Parkinson's disease. In a statement, Intel chief executive Brian Krzanich said that Mr. Grove "made the impossible happen, time and again, and inspired generations of technologists, entrepreneurs, and business leaders."