[TheForge] Re:analog vs digital YAK
Dann Johnson
[email protected]
Sat Apr 3 17:29:01 2004
I found a new to me/ sent to me: New hacker fishing scam using eBAY
this afternoon.
Official looking eBAY question / response quoting shipping costs for an
item that I had supposedly bid
with an eBAY "looking" link.
If it had been on the isp email account that I use on eBAY I might have
been tempted to bite on that hook.
Andy and Steve,
The thread below has been educational for me. I knew that my old stereo
was analog but .... Thanks all for this quickie course in
electronics. 8 years ago, I remember sitting on the board of
directors of our electric coop, being given the same kind of hype at an
area convention. The presenters sounded exactly as Andy described and
were big muckety mucks for a dot.com company, getting ready for
the IPO. Luckily my electric coop didn't get hooked on that one either.
Dann Johnson
*********
At 11:30 AM 4/3/2004 -0800, you wrote:
>Steve Smith wrote:
> >
> > Since I currently gainfully employed designing analog chips, I'll have
> > to stick my oar in here.
> >
> > Some things are just easier and cheaper to do analog, such as the
> > megahertz video filters I've been working on lately. Note, however, that
> > the signal fed to these chips comes from a digital to analog converter...
> >
> > Digital does not work directly with the real world. In most cases there
> > needs to be some analog piece as the interface. The more digital there
> > is, the more need for analog. Cell phones are largely digital, until you
> > get to the two ends of the phone, antenna and speaker. Those bits are
> > analog (and the antenna end is pretty non-trivial). There are many other
> > examples.
> >
> > Steve Smith
>
> Very true. If one wishes to get down to real nitty gritty,
> there is no such thing as a purely digital anything. It's
> all analog. A CPU is actually an analog simulation of an
> truely digital device, which is to say there is a homoporphic
> mapping between the theoretical device and the real one.
>
> I used to laugh when during the dot.com spoogefest the
> ignorant but very velvety-toungued CEOs and other such
> dullards were proclaiming how the great digital revolution
> was going to make all analog devices disappear from our
> world. I'm not joking, I used to hear this fairly often
> from people that, taking their titles at face value, should
> have known so much better. Then again, these were the same
> fops that were busily convincing their investors that everyone
> was going to become trillionaires in under 27 minutes and
> that the "product" was going to miraculously pop into
> existence and find its way onto retail shelves without anyone
> ever having to raise a finger. What was so staggering about
> this lay in the sheer numbers of people who swallowed it,
> hook, line, and sinker. I'm not sure even Voltaire would
> not have been moved had he borne witness to it, and he
> had pretty well written humanity off as hopelessly stupid.
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