Strolling through the research labs as HP Labs turns 50 (photo gallery)

HP Labs is housed in one of the original buildings of Hewlett-Packard in Palo Alto, California. Not far from the original garage where Bill Hewlett and Dave Packard started HP in 1939, the labs are the home of many innovations over the years, from the inkjet printer to the light-emitting diode to the first programmable scientific desktop calculator.
The company celebrated that heritage yesterday as it invited the press for a day of briefings and a tour of the labs. We attended the event, which w