HP’s History of Innovation: 10 Products That Changed Everything

Hewlett-Packard (HP) built its reputation over eight decades by repeatedly redefining what a personal computer, printer, or scientific instrument could do. This article answers the question directly: the ten products that changed everything for HP are the HP 200A Audio Oscillator, HP 9100A Programmable Calculator, HP-35 Scientific Calculator, HP 9830A Desktop Computer, HP LaserJet, HP DeskJet, HP Pavilion, HP Compaq, HP TouchSmart, and HP Spectre. Each one either created a new category, made a technology affordable for the first time, or forced the entire industry to follow its lead.

Formula

This calculator estimates the average pace of product innovation for any HP breakthrough. The formula is simple:

Innovation rate = Generations ÷ Years

Where:

• Years = time elapsed since the product’s launch (in years)
• Generations = number of distinct product generations or major revisions released in that period

The result is the average number of major product iterations per year. A rate above 0.5 means the company updated the line more than once every two years; below 0.3 means the product stayed stable for long stretches.

Worked Example

Using the default values: 10 years and 3 generations.

1. Divide generations by years: 3 ÷ 10 = 0.3
2. The result is 0.30 innovations per year.

That means the product line received a major update roughly every 3.3 years. This is typical for enterprise hardware like servers or high-end workstations, but slow for consumer gadgets like phones or laptops.

The 10 Products That Defined HP

These ten products are not just best-sellers; they are inflection points. Each one solved a problem that competitors had either ignored or failed to solve affordably.

1. HP 200A Audio Oscillator (1939)

HP’s first product was a low-distortion audio oscillator used to test sound equipment. Walt Disney bought eight of them for the soundtrack of Fantasia, giving HP its first major customer and its first taste of the entertainment industry. The 200A established HP’s core principle: build a precise, reliable instrument and price it below the competition.

2. HP 9100A Programmable Calculator (1968)

Before the 9100A, engineers used slide rules or room-sized mainframes. The 9100A was a desktop device that could compute trigonometric and logarithmic functions at the press of a key. It was marketed as a “personal computer” years before the term was common, and it made complex math accessible to a single engineer at a desk.

3. HP-35 Scientific Calculator (1972)

The HP-35 was the first handheld calculator to replace the slide rule. It fit in a pocket, ran on batteries, and could handle transcendental functions. At a time when a slide rule cost a few dollars, the HP-35 cost $395, but it sold over 300,000 units in its first three years. It killed the slide rule industry and made HP the dominant name in engineering calculators.

4. HP 9830A Desktop Computer (1972)

The 9830A was a BASIC-language desktop computer that could control instruments and process data without a mainframe. It was used in laboratories, observatories, and factories. Its significance was not raw power but the idea that a computer could be a personal tool for a scientist, not a shared resource for a whole building.

5. HP LaserJet (1984)

The LaserJet combined a Canon laser engine with HP’s own controller and software. It produced 8 pages per minute at 300 dpi, which was revolutionary for office printing. The LaserJet’s success created the laser printer market and made HP the world’s largest printer maker. Its PCL (Printer Control Language) became a de facto standard.

6. HP DeskJet (1988)

The DeskJet brought inkjet printing to the home and small office. Earlier inkjets were slow, noisy, and expensive. The DeskJet 500, released in 1990, was the first to offer near-laser quality at a fraction of the price. It made color printing affordable and turned ink cartridges into a recurring revenue stream that funded HP’s later growth.

7. HP Pavilion (1995)

The Pavilion was HP’s first consumer-focused PC line. Before it, HP sold mostly to businesses. The Pavilion combined a multimedia-ready PC with easy setup and aggressive pricing. It helped HP compete with Dell and Gateway in the home market and established the company as a full consumer electronics brand.

8. HP Compaq (2002)

HP’s acquisition of Compaq in 2002 was controversial, but it created the world’s largest PC maker at the time. The combined company used Compaq’s supply chain and HP’s enterprise relationships to dominate the business PC market. The Compaq line continued for years, and the merger allowed HP to compete with IBM in services and with Dell in hardware.

9. HP TouchSmart (2007)

The TouchSmart was an all-in-one PC with a touchscreen that worked before the iPad made touch mainstream. It was designed for the kitchen and living room, with a media center interface and a screen that could be used like a tablet. While it never became a mass-market hit, it proved that touch interfaces could work on a desktop and paved the way for Windows 8 and later touch-enabled laptops.

10. HP Spectre (2016)

The Spectre was HP’s answer to the MacBook Air and Dell XPS. It was the thinnest laptop in the world at 10.4 mm, with a gem-cut aluminum body and a 1080p display. The Spectre line has since become HP’s premium brand, featuring OLED screens, long battery life, and high-end build quality. It showed that HP could compete at the top end of the laptop market, not just in budget PCs.

How to Choose Which HP Innovation Matters Most

If you are studying HP’s history, the “most important” product depends on your lens:

• For engineering: The HP-35 changed how every engineer worked.
• For business: The LaserJet created a profitable monopoly.
• For consumers: The DeskJet made printing personal.
• For computing: The 9100A was the first true personal computer.

No single product is the “best”; each one opened a new market that HP then dominated.

Common Misconceptions About HP’s History

A frequent error is crediting HP with inventing the inkjet printer. It did not; Canon and Epson were earlier. HP’s contribution was making it reliable and cheap enough for home use. Another misconception is that the Compaq merger was a failure. While it was criticized, it made HP the #1 PC vendor and gave it the scale to survive the 2000s.

Also, many people assume HP’s calculators were a side business. In fact, the HP-35 had a profit margin that funded much of the company’s early R&D. The calculator division was so successful that it kept HP afloat during the 1970s recession.

Limits of This Innovation Rate Calculator

This calculator gives a rough pace, but it does not measure quality. A product can have many generations that are minor tweaks, or few generations that are revolutionary. It also ignores the time between generations, which can be uneven. Use it as a quick comparison, not as a definitive metric.

For example, the LaserJet had a new generation almost every year in the 1990s, giving a high rate. The TouchSmart had only a few generations before being discontinued, giving a low rate. Neither number tells you which product was more important to HP’s bottom line.

Frequently Asked Questions

What was HP’s first product?

The HP 200A audio oscillator, designed in 1939 by Bill Hewlett and Dave Packard in a Palo Alto garage. It was a low-distortion signal generator used for testing audio equipment. Walt Disney bought eight of them for the production of Fantasia, which gave HP its first major order.

Why did HP stop making calculators?

HP never fully stopped; it still sells graphing calculators like the HP Prime. But it exited the low-end consumer calculator market in the 1990s and 2000s because smartphones and cheap competitors eroded margins. The professional and graphing segments remain, but they are a tiny part of HP’s revenue.

Was the HP TouchSmart a failure?

Commercially, yes, it never sold in large numbers. But it was a technical success that proved touchscreens could work on a desktop. Many of its interface ideas appeared in later Windows versions. It was a product ahead of its time, not a bad product.

What is HP’s most profitable product ever?

The LaserJet printer line is widely considered HP’s most profitable product ever. The printers themselves were profitable, but the real money was in replacement toner cartridges, which had margins above 50% for decades. The LaserJet’s dominance funded HP’s expansion into computers and services.

Did HP invent the personal computer?

No single company invented the PC. But HP’s 9100A (1968) is often cited as the first desktop device that could be called a personal computer, because it was programmable and used by one person. However, the Apple II and IBM PC in the late 1970s are what made the PC a mass-market product.

What is the HP Spectre known for?

The Spectre is HP’s premium ultrabook line, known for being extremely thin and light, with high-end materials like aluminum and carbon fiber. The 2016 model was the thinnest laptop in the world at 10.4 mm. It competes directly with the MacBook Air and Dell XPS.

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in t | Years since product launch | years | 10 | 0 | 100
in g | Generations since launch | generations | 3 | 1 | 20
out rate | Avg innovations per year | per year | g / t | 2