The company was founded on January 1, 1939, by William R. Hewlett and David Packard, two recent electrical-engineering graduates of Stanford University. It was the first of many technology companies to benefit from the ideas and support of engineering professor Frederick Terman, who pioneered the strong relationship between Stanford and what eventually emerged as Silicon Valley. The company established its reputation as a maker of sophisticated instrumentation. Its first customer was Walt Disney Productions, which purchased eight audio oscillators to use in the making of its full-length animated film Fantasia (1940). During World War II the company developed products for military applications that were important enough to merit Packard a draft exemption, while Hewlett served in the Army Signal Corps. Throughout the war the company worked with the Naval Research Laboratory to build counter-radar technology and advanced artillery shell fuses.