Waht is an MC1806 ?

[Tony Duell]

> This is the short description:
> 
> Part Number =3D MC1806P
> Description =3D 2-Input AND-Function Logic Gate

Thanks, (and thanks to others who've offered me data. This really is a 
great list!).

An AND gate makes sense now that I've realised that the 9830 has active 
high data output lines and active low data input lines on the I/O bus 
(!). This gate needs to be a non-inverting type where the output can be 
forced low -- that is an AND gate. 

-tony