Re: Gnucap Comprehensive Help System Implementation Details

al davis <[email protected]>
Newsgroups gmane.comp.gnu.gnucap.devel
Message-ID <[email protected]> 
On Sunday 25 May 2014, Felix Salfelder wrote:
> CARD is the base class for everything.

CKT_BASE is the base class for everything.

CARD is only things that can be objects in a netlist or circuit 
file.

NODE is CKT_BASE, but not CARD.
 
> i am not sure where the terminology originates from, but it
> seems to be quite common. maybe it dates back to a time when
> people fed punch cards into their mainframes..

That's it!

If you look at the documentation for early versions of SPICE, 
the term CARD is used there.

http://en.wikipedia.org/wiki/Hollerith_card
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