It is a bit excessive to say that it is unrelated. Many of the techniques and methologies created for the 4004 were instrumental in the development the 8008. Al

It is a bit excessive to say that it is unrelated. Many of the techniques and methologies created for the 4004 were instrumental in the development the 8008. Also, the 4004, 8008, and 8080 were all designed by more or less the same people (esp. Faggin).