4004 and IC history / was Re: Vintage computer photogallery

[Brent Hilpert]

Tim Shoppa wrote:
> For fun, abandon gates and instead build stuff out of CD4007's.
> The datasheets and part number might make you think it's a logic
> chip, but in real life it's some NMOS/PMOS pairs with a good amount
> of the internal connections available. Lotsa fun as an analog device!

Yeah, that's an oddball, I remember learning about it when building a pong
game from Popular Electronics out of CMOS SSI and Norton amps as a teenager.