Cool 4004 based calculator

From: Paul Koning <pkoning_at_equallogic.com>
Date: Tue Jun 8 08:46:15 2004

>>>>> "Ethan" == Ethan Dicks <dickset_at_amanda.spole.gov> writes:

 Ethan> On Mon, Jun 07, 2004 at 10:22:00PM -0700, ed sharpe wrote:
>> I need to find a trashed out calc it seems just so we can get a
>> 4004 for the microprocessor collection here!

 Ethan> I have two 4004s... one came from a non-UPC barcode reader I
 Ethan> picked up at Dayton 20+ years ago for $5, the other from a
 Ethan> commercial kitchen scale with LED readout.

 Ethan> They were used in more than just calculators.

Indeed. A classmate of mine made a "PC" out of one, back in 1974, as
a college honors project. Designed the whole thing, and built it
(over 100 ICs, mostly 7400 series SSI, wire wrapped).

It sufficiently impressed Fermi Labs that they wanted to make some
copies of it...

       paul
Received on Tue Jun 08 2004 - 08:46:15 BST