Modified versions of Hewlett-Packard’s 200A oscillator for specific applications went into production almost simultaneously with the 200A itself. Perhaps the most famous modification was the 200B, a c ...

Hewlett-Packard’s first magazine ad appeared in the November 1939 issue of Electronics, showcasing the Model 200B audio oscillator. This product would notably be used by Walt Disney Studios to test so ...

Hewlett-Packard’s first campus was a rented residential property at 367 Addison Avenue in Palo Alto. The Packards lived on the first floor of the main house, while Bill Hewlett lived in the cottage ou ...

The garage at 367 Addison Avenue became a Silicon Valley icon. Dave and Bill worked there in 1938 and 1939 while living on the property, and it was there that they developed Hewlett-Packard’s first pr ...

Upon graduating from Stanford University in 1934 with his undergraduate degree in radio engineering, Bill pursued his master’s degree at MIT. After receiving it, he then returned to Stanford, where he ...

The 200A oscillator used a design breakthrough Bill Hewlett had developed at Stanford to offer a greater level of accuracy than the best oscillators then available on the market for a fraction of the ...

A rare early photo of the Hewletts and the Packards all together at Addison Avenue. From left to right: Bill Hewlett, Flora Hewlett, Lucile Packard, Dave Packard.

During the company’s first year of operations, Bill and Dave’s former classmate Noel “Ed” Porter worked for a local air conditioning company and farmed out work to the young Hewlett-Packard Company de ...

Bill Hewlett drew this schematic for Hewlett-Packard’s first product by hand. It is dated January 26, 1939.