[Coco] PIA lecture

[James C. Hrubik]

Fergit the coat, Gene, the lecture is appreciated.

On Feb 7, 2015, at 11:57 AM, Gene Heskett <gheskett at wdtv.com> wrote:

> On Saturday, February 07, 2015 10:12:14 AM Chad H wrote:
>> The whole "PIA" keeps getting me.  Since I don't know what it really
>> means my brain keeps reverting to "pain in a$$"
> 
> PIA=Peripheral Interface Adaptor=a 6821 or 6822, one has open collector 
> outputs meaning it can only pull down to about .1 volts, the other is a 
> normal TTL "totem-pole" output, a quick and dirty push-pull output, with the 
> sink side transistor being the strong one. 
> 
> ….
> 
> I'll get me coat now.  :)
> 
> [...]
> 
> Cheers, Gene Heskett
> -- 
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS
> 

~~~~~~~~~~~~~~~~~~~~~
"If you hold to my teaching, 
you are really my disciples.  
Then you will know the truth, 
and the truth will set you free.”  
Jn 8:31-32.