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Re: starship-design: HIGHLY OPTIMIZED TOLERANCE
> As my first PC was a Commadore 64, they were masters at minimum code writing.
> They were doing thing with games, multimedia (video toaster) that only
> recently bloated code on present humongous PCs are doing. It would seem that
> you need to focus on your instructional set and not chip technology to
> accomplish what you want, Basic computer architecture has remained the same
> with miniaturization (and the increased speed with it) being the main
> progress. That not done by hardware can usually be done by software.
A Coco fan myself, but I have did some work with a vic-20 to run some
VCR players for a comunity channel a lang time ago.
> True. I use analog computer processors for ship guidance. This inertial
> guidance system takes data from sensor input, processes it in real time and
> delivers the output analog data to the control servos. A robust method that
> eliminates the fragility of present slow miniaturized processor chip
Providing speed is not a requiment, I like the idea of digital encoding
of analog data to pulse width modulation.
> Massive failures (rare) in any or many of the parallel processors (100 in
> number) failed to bring the computer down. In a RAID type array each of 3
> instruction sets can be compared and the majority bit by "majority" vote sent
> to the central processor for actual use. This and other techniques would
> allow such a space faring computer to obtain many bit destroying cosmic
> collisions without destroying the integrality of the data and its primary
The majority bit is good idea, but what if during a write to memory
a glitch sets or clears other random cells in them memory array?
Error correcting does nothing if you get a burst of errors.
> Example: Oxide memory storage disks can have many holes (from cosmic
> collisions) in coating and still work as the bad spots are mapped and the
> data written to and beyond the hole and retrieved in the same manner. Any
> storage device with the redundant data comparison instruction set can route
> and go around a faulty chip address in the parallel set allowing the data
> processing integrity. Wriiteable CD storage devices would be less susceptible
> to magnetic storms encountered and the same repairable redundancy technology
> be used. Since present hard drive technology available for retail have their
> heads flying in air of the oxide (or other surface) they are not useful and
> crash in the vacuum of space. That is a fixable problem with pressurization
> though hard to maintain with robotic probes. (again micro meteor collision)
This looks like a quick fix needed with scotch tape...
Really, check slashdot out for a writable tape storage system.
You can add air for your hard drive to work, then seal the unit.
A write once product might be just as useful if the computer processing
is mostly control, rather than general computing.
> Ok, but I will just use a joy stick and throttle sensors from my analog
> computer. As the human brain is one of the best and biggest analog computers
> around (especially mine ;=)), I will take 20 other brains from
> starship-design list or clone of mine with me for redundancy. :=)
That explains why everybody walks around with that glazed look in their
eyes and the hole in the skull and "Yes Master" is all they can say.
> Each of the twenty crew members will have three (one operating) PC's net
> worked together but each capable of operating independently to handle all
> ship computer needs.
> Non manned supply ships are not
> limited by the constant 1 g acceleration required for human cargo and so can
> be accelerated to a constant 15 g before supply integrity fails.
3 G's is the limit for many items,but most acceration would be .1g even
with fusion do to the problems of generating more acceration.
> Considering the frailty of space ship earth and the MAD atomic policy such a
> journey would seem most necessary to mankind's survival.
"We do not inherit our time on this planet from our parents...
We borrow it from our children."
The Lagging edge of technology: