<p>The product was called Callback/3000, kind of like that satirical tv show, "Mystery Science Theater 3000." MST3K premiered on November 24, 1988. My product premiered in the early 1980s! The "3000" in my product's name stood for HP-3000, the minicomputer manufactured and marketed during those years.</p>

The product was called Callback/3000, kind of like that satirical tv show, "Mystery Science Theater 3000." MST3K premiered on November 24, 1988. My product premiered in the early 1980s! The "3000" in my product's name stood for HP-3000, the minicomputer manufactured and marketed during those years.

I once designed a computer monitoring product in the closet of my bedroom.

True stories about technologies I've used over the past fifty years. From 4-bit, Intel 4004 microprocessors to the marvel of op-amps to building an interface to an HP-3000 in a rat-infested animal feed company.

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I once designed a computer monitoring product in the closet of my bedroom.

I once designed a computer monitoring product in the closet of my bedroom.