4004 and IC history / was Re: Vintage computer photogallery

[Brent Hilpert]

woodelf wrote:
> 
> Brent Hilpert wrote:
> 
> > Thanks for the correction, but why was it in such a larger package?
> > (4040 was a 28 or 40-pin package wasn't it?).
> 
> I think I read that lintel at that time could not test a larger
> package at time.Since the original market was a 4 function calculator
> small packages made sense.
> Ben.

I think you have my question backwards, the question is what are the
additional 8 pins (24-pin package I have been advised) being used for on the
4040, given as Dwight says, that the bus interface is the same.