5 Jan
2010
5 Jan
'10
12:04 a.m.
cctalk-bounces at classiccmp.org wrote:
Urr? There's no significant incremental cost
there. I'm sure
it's calculable, but it'll be in the hundredths of a cent.
-Dave
I've no idea why this board was built the way it was, but I've seen
plenty
of designs that had all the bells and whistles (or debug MICTORs etc.)
in the
proto and even early engineering builds and then were removed once the
design
was proven or requirements firmed up and the extra bits and pieces were
not
needed. Not building in connectors/components etc. saves a few pennies
(or
more) per board. Re-laying out the board costs $$$.
There are also plenty of examples of part A and part B using the same
board
but with different/more components added for the more expensive variant
(different capacity memory boards would be the classic example, I
guess).
Antonio