CPUs didn’t have brand names, besides the manufacturer, until the 1990s. They had part numbers and clock speeds. Frequently we shortened the part numbers. The 486’s full part number was 80486. The courts wouldn’t let Intel trademark a number, so the 486 was the last CPU of its kind, raising the question: What came after 486?
The follow-up for the 486 was the Pentium, at least in Intel’s case, and it was introduced March 22, 1993. But several companies made 486 CPUs, and several of those released their own follow-ups to the 486, including AMD and Cyrix.










