>> [...] but running a full-blown timesharing OS
just to control a few
>> blinkenlights or whatever is morally wrong.
> [...]
(I have some remarks on these, which I'll save for later.)
> [...] Nonsense. [...]
Acutally, I have found time and again that simple
systems (which
doesn't necessarily mean minimal component count) are more reliable
than complicated ones. [...]
Andd by never seeing the simple solutions to problems,
you never
think about them when you have to design soemthing.
I think tony's right, here.
Recently, I was involved in a project which wanted to turn a small
camera on for maybe a second or two every couple of minutes (it was
doing time-lapse filming of a building construction project). And it
was battery-powered, so just discarding most of the frames in software
wasn't much of an option.
The principal other person immediately thought of an Arduino. (These
days, perhaps a Teensy instead - this was before Teensies, I think.) I
thought of a 555. (I used an external transistor as a switch; the
Arduino design was never firmed up enough to know, but it probably
would have had to do something similar.)
I breadboarded it and the 555 way turned out to draw something like 20%
the power of an idling Arduino. This meant the battery life was
substantially extended; given the difficulty of replacing the
batteries, this was a not inconsiderable gain. But someone who jumped
to the "use a microcontroller" answer would have missed it entirely.
> Ubiquitous computing is not morally wrong.
Not always. But it is certainly possible for it to be.
> There is nothing wrong with abundance.
No...but `abundance' in that sense is not present here. At least not
for the sense I understand you to mean: abundance as in "there's such
an excess that there's no point putting a price on it because everyone
can have all they want and we'll still have plenty left over".
> There is nothing virtuous about scarcity.
I'm not sure I agree, but I don't think it matters, because there _is_
virtue in the absence of wastefulness.
Whether using a full-fledged computer to drive a blinkenlight or two is
wastefulness is something that it is reasonable to debate. Personally,
I think it is, even today.
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