Semi-OT: IDE & SATA to USB "dongles"

[Roy J. Tellason]

On Saturday 03 June 2006 02:16 am, Chuck Guzis wrote:
> On 6/3/2006 at 1:12 AM ard at p850ug1.demon.co.uk wrote:
> >There were at least 2 different expanders, I forget the number of the
> >other one.
>
> Well, for the 3000-series TTL, there was the 3130, a dual 4-input job, and
> for 2000 series TTL, there was the 2002/2052 3-2-2-3  AND-OR-INVERT
> expander, as well as the 2006/2056 dual 4-input.  There were similar parts
> for the 400/500 series TTL also.

I've been wondering for a while now what the major use was of those 
"AND-OR-Invert" gates,  since the early TTL stuff I became familiar with 
first had a bunch of them in the databook...

Anybody know?

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
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Information is more dangerous than cannon to a society ruled by lies. --James 
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