- 1938 – HP invented its first product the HP Model 200A which was used to test sound equipment. The Walt Disney Company subsequently ordered 8 units of the HP Model 200B to prepare movie theatres to show Fantasia.
- 1938 – Bill Hewlett and Dave Packard formalized their partnership on 1 January 2939. A coin was flipped to decide the company’s name.
- 1947 – HP was incorported on August 18. Dave Packard was named President, Bill Hewlett, Vice-President.
- 1956 – HP produced its first oscilloscopes, which went on to represent a significant part of HP’s test and measurement product line.
- 1957 – HP held its IPO on November 6, with shares selling for $ 16 (U.S.). The IPO was issued for two reasons: to help with estate planning for its founders and to enable employees to share in the company.
- 1966 – HP introduced its first computer, the HP 2116A. The world’s first go-anywhere, do-anything computer, it was designed to withstand environmental extremes.
- 1968 – HP introduced the world’s first desktop scientific calculator, the HP 9100A. It was ten times faster than most machines at solving science and engineering problems. Ads called it a “personal computer,” one of the first documented uses of the term.
- 1972 – HP entered business computing with the HP 3000 which introduced the era of distributed data processing.