Computer Power

A thread of 2 messages, 22 November 1993 to 26 November 1993, in the order they were sent.

#6365 Computer Power

 I wish I'd never commented on power consumption, and I wasn't going to mention
  it again, until a couple of messages confused me....

 Power Consumption for a 1 Traveller Displacement Ton computer was given as
  400 000 kW/month, therefore 13.33 mW/day. The units are not exactly correct,
  just like the GDW source material in fact, which confuses Joules and Watts
  all over the place (they've got better, but they still switched them around
  at least once in the Challenge 71 Lasers articles I think).

 I'm sure the original 400 000 kW/month means something in the real world,
  could someone elaborate? (my guess is they meant kW/hours not kW, which
  gives a 0.555 mW power consupmtion which is 'distinctly non-trivial' as my
  tutor once said)

 Overall I think I'll stick to Energy Points, at least you know what the units
  are :)

 From the comments on the TML it looks like FFS is going to be quite good,
  if it turns out VERY good I might even be tempted to start using the T2000
  rules, but probably not. I have problems with TNE because I don't like the
  background, I don't like the system, and I don't like the graphics style....
  Maybe GDW lost a customer here (nahhh.... I'll still buy anything with
  'Traveller' printed on it)

                       Ready to be corrected....
                                  Anthony K   (asking Santa for Azhanti High
                                                                Lightning)
  PS: Any news on the Traveller CD ROM ?
  PPS: Thanks to whoever posted the ideas on Virus (I lost the message and the
       name) I love the idea of Vampire ships rebuilding the Imperium inside
       the Black Curtain. Wander in and everything is just as it was in 1100 :)
       You'd have to explain why no radio messages got out....

#6385 COmputer power

> 400,000 Kw/month = 400 MW/month = 13.33 MW a day

This sounds more like a rate of power consumption change.  `MW'
is a measure of power consumption, so what is `MW per day'?

Do you mean `MW-hours per day'?  Then 13 MW-hr/day would be about
0.5 MW.  No wonder it needs monster cooling systems!  Without cooling,
the temperature would probably rise toward about 500'C until it
died.

Of course, this discussion is assuming that we are concerned with the
`supercomputer' range.  What if you want something smaller?  What sort
of processing power can you get out of a 100W desktop computer at
various TLs?  I would find it quite conceivable to run a starship off
a computer that, in 2 TL or so, would be considered a `pocket' computer.
Based on MegaTraveller, in which TL6 is ~1950, and TL8 is ~1990, this is
certainly the case.  The progression in the starship computer tables seems
*faster* at higher TLs, with a 2-fold increase in `maximum CP input' and
30% increase in `CP multiplier' from TL6 to TL8, but a jump of 2 TLs from
TL12 to TL14 gives a 100-fold increase in `maximum CP input', and more
than 100% increase in CP multiplier.  Thus, if a pocket computer at TL8
is more than a match for the TL6 supercomputer, it would seem that a TL14
pocket computer should exceed the capabilities of a TL12 supercomputer by
an even greater amount.

This is partially borne out by the entry in the Imperial Encyclopedia,
where a TL11 hand computer "provides services of a supercomputer
(equivalent to Model/1 in computing power)".  Now, I would expect it to
be much better than that!  Model/1 is the 1950's supercomputer.  TL11 is
post-2100 projected technology (Meson guns, gravitic structures become
commonplace, Jump-2 drives, and reactionless thrusters).

Nevertheless, the precedent has been set - hand computers of higher TL
*can* serve as lower-TL supercomputers.  In MT, a vehicle needs to cost
more than ~50 MCr before it needs a Model/2.  For smaller vehicles, the
computer can take up a considerable amount of the power, space and cost
of the total.  So, just replace it with a TL11 hand computer, at 1/10000th
the volume, 1/1000th the mass, and 1/900th the cost, with negligible
power consumption.


(MT gripe: Have you noticed that TL12 `solar cells' extract 60 times more
power from sunlight than is actually present?  Even TL6 cells extract 3
times more.  But that's cancelled out by the much-too-small surface areas
available for large ships.)

- --
Tim Little