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Article #18661

Re: backwards eproms (was Re: New Technologies)

#18661
From: John Woods, Software
Date: Thu, 18 Feb 1988 22:53
23 lines
1522 bytes
In article <194@hdr.UUCP>, eric@hdr.UUCP (Eric J. Johnson) writes:
> In article<1988Feb9.151701.6201@sq.uucp> ian@darwin.UUCP (Ian F. Darwin) writes:
>	I also found out (without harming the board) what happens when you
> 	put in the correct EPROM, but insert it upside down.
> 	*The little light inside comes on.*
> 	You didn't know there was a little light inside an EPROM, did you?
> 	Well, there wasn't supposed to be, and it's not there anymore anyway!
> 
> Here we call that a "one-shot LED" :-)
> 
Ah, yes.  A few years ago, I was helping to debug a sickly PDP-11/45.  As we
were poking around with the scope, one person asked "What does this LED on
the CPU board mean?"  Someone else replied, "There aren't any LED's on the CPU
board...OH, SH*T!"

--
John Woods, Charles River Data Systems, Framingham MA, (617) 626-1101
...!decvax!frog!john, ...!mit-eddie!jfw, jfw@eddie.mit.edu

"Cutting the space budget really restores my faith in humanity.  It
eliminates dreams, goals, and ideals and lets us get straight to the
business of hate, debauchery, and self-annihilation."
		-- Johnny Hart
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!necntc!frog!john
References: <7944@sunybcs.UUCP> <2407@bloom-beacon.MIT.EDU> <360@splut.UUCP> <194@hdr.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!necntc!frog!john
From: john@frog.UUCP (John Woods, Software)
Newsgroups: sci.electronics
Subject: Re: backwards eproms (was Re: New Technologies)
Message-ID: <2080@frog.UUCP>
Date: 18 Feb 88 22:53:00 GMT
References: <7944@sunybcs.UUCP> <2407@bloom-beacon.MIT.EDU> <360@splut.UUCP> <194@hdr.UUCP>
Organization: Superfrog Heaven [ CRDS, Framingham MA ]
Lines: 23