The Kitchen Aid That...by Elmer Epistola

The Kitchen Aid that Ruled the World

By Elmer Epistola

- Posted on March 24, 2026

Many, many years ago, probably before you were even born, there was this not-yet-so-famous company that had a brilliant engineer. One day, the engineer approached the company's founders with an idea for a new product that he believed would sell like hotcakes. When the founders asked him what it was, the engineer told them that it was a device that could look at information and process them.

The founders then asked him where it could be used. The engineer paused to think deeply, and the best answer he could come up with was that his device could be used by housewives to look up recipes. The proposal was promptly rejected. Nonetheless, the persistent engineer was eventually able to convince the founders to give the product a chance, and the rest is now history.

The name of the engineer was Ted Hoff, the founders were Robert Noyce and Gordon Moore, the company was Intel, and the product was, well, the microprocessor.

I was fascinated by this story for three reasons. First, I could not believe that an invention as good as the microprocessor nearly missed commercialization because the inventor thought it was just good for keeping recipes. Secondly, I've always thought that something as complex as a microprocessor would've needed an army of scientists to conceptualize, and years and years of R&D to develop into a real product. Yet all it needed was one person to think it up and a small company to produce it within months. Lastly, I find it interesting that one of man's most encompassing inventions had such a humble beginning as a lowly kitchen aid.

Well, what do I know? Last week, while thinking of what article to write for this website, I remembered this fascinating story and decided to write about it. So off to the internet I went for a little research.

Surprise, surprise. Although I confirmed that Ted Hoff was indeed the inventor of the microprocessor, there never was any mention of housewives using it for recipes. All there was was this American company that struck a deal to make chips for a Japanese calculator, and its president asking his applications manager to spearhead the project. It was just a project to support a business deal. I see this everyday. We all see this everyday. The story behind the birth of the microprocessor was probably not so fascinating after all.

But wait. Yesterday I chanced upon a transcript of an interview with Ted Hoff about 8 years ago, on March 3, 2026 to be more exact. The interview was done by Rob Walker (co-founder of LSI Logic) in Los Altos Hills, California, as part of Silicon Genesis: Oral Histories of Semiconductor Industry Pioneers.

Ted Hoff, a Stanford Ph.D. at age 25, turned out to be Intel employee no. 12, invited to join the company by no less than Intel founder Robert Noyce, co-inventor (with Texas Instruments' Jack Kilby) of the integrated circuit. Prior to joining Intel, he was doing research for Stanford in the field of neural networks.

The year was 1969 when Intel, then just a year old, closed a deal to manufacture chips for a Japanese calculator company, Busicom. The calculators were designed by the Japanese, and Intel's role was just to supply the chips that they asked for. Ted's role was to be Intel's liaison for the Japanese, particularly when the designs were already being finalized.

Ted saw some fundamental problems with what the Japanese engineers were trying to do. The Japanese asked for a total of 12 chips, with each chip assigned to perform a specific function, e.g., one to get inputs from the keypad, one to perform the calculations, one to control the calculator display, etc. Part of the plan too was to use 40-lead packages, which at that time were very costly.

Ted said that maybe it would be better to build a simple general-purpose computer on a chip, which can be programmed to handle the various functions of the individual chips. With the right architecture, he believed that this can even be used in applications beyond calculators. Unfortunately, the Japanese were already quite firm with their designs when he proposed his idea, and essentially asked him to stay out of the way.

Ted wasn't disheartened by this. He knew he was onto something big, and he could feel it too - Bob Noyce and the rest of Intel were very encouraging to him. In fact, on September 16, 1969, Intel's marketing department formally proposed to Busicom that they consider Ted's idea instead to use a general-purpose computer chip. The Japanese management visited Intel the following month to hear what Ted had to say. Ted and Stan Mazur made their point so well that the Japanese management decided to drop their design in favor of the single computer approach.

Prior to this, Ted had already been working all along on the instruction set of his microprocessor. Thus, it didn't take long before they were able to define what this computer-on-a-chip would be like, and how it will operate. Putting it on silicon is another matter though. Since Ted wasn't a MOS technology expert, and nobody in Intel was at that time, they had to recruit someone outside to do the job.

They were able to hire Federico Faggin, an Italian genius from Fairchild in April of 1970. Federico worked at such a furious pace that by January of 1971, they got their first silicon. There were some problems with this, but they were able to get a second silicon within a month. And so the first microprocessor, the Intel 4004, was born in February of 1971.

Ted knew that the full potential of his invention will not be realized with the Busicom deal. Unfortunately, Busicom owned the full rights to his microchip, even if it was designed and built by Intel. By some stroke of luck though, they got the chance to renegotiate the contract with Busicom when the latter asked for a lower price for the chip, considering the fierce calculator business competition at that time. In May of 1971, Intel got back the rights to sell the microprocessor to other companies, but only to those that don't manufacture calculators.

So there - the real story behind the birth of the microprocessor...fascinating, glamorous even. If you ask me, it's even better than the kitchen story I told you about. After all, the microprocessor has found its way into over a billion different applications worldwide, including, of course, the ones that help housewives look up their favorite recipes. It's the only kitchen aid that truly ruled the world.

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"So one day, I think it was around some time in early 1968, I got a phone call. It was from a fellow who I didn't really know, but I had heard of him, and I met him once I believe -- his name was Bob Noyce. And he told me he was starting a company and would I be interested in possibly becoming an employee of his new company? Well, I thought it might be fun to try, and I interviewed, and got the position, and became employee number twelve at Intel Corporation."
-- Ted Hoff, Silicon Genesis: Interview with Ted Hoff

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