>> Are they the correct technology? I like 'em because you can get to parts of
>> the circuit easily, but it is more compact to put everything on just a few
>> boards.
>Flip chips, M series and all were really dictated not by what could be put
>on a board but how many connections the bord could make. For a flip chip
>it was 18 or 36 (someone?). A 16 bit parallel load register like say a
>pair of LS573s would need 32 IO, plus power and controls. See the
>problem?
>
>Even TTL chips hit the wall in pins/functions per package.
Exactly - it's not a question of "do we have the parts?" but "Can
we connect all the parts together usefully?".
Is it true that the first CPU-on-a-single-board was the DG Nova?
(And it's a rather largish board, at that! Almost equivalent in
area to all the boards in the PDP-8/E CPU put together...)
--
Tim Shoppa Email: shoppa_at_trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
Received on Wed Oct 20 1999 - 13:32:52 BST