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Subject: Re: Putting DB chip into something the size of an Iomega Drive?

Author: Robert Hyatt

Date: 12:36:50 05/25/99

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On May 25, 1999 at 10:37:03, Robert Pope wrote:

>On May 25, 1999 at 09:45:16, Robert Hyatt wrote:
>
>>On May 25, 1999 at 03:06:34, Dave Gomboc wrote:
>>
>>>On May 24, 1999 at 22:05:17, Dann Corbit wrote:
>>>
>>>>On May 24, 1999 at 21:00:56, Roger D Davis wrote:
>>>>
>>>>>Seems that some people think installation will be a bear and others think it's a
>>>>>minor issue. It occurred to me that maybe the DB chip could be put into a box
>>>>>about the size of my Iomega Zip drive, or just a little larger, and plugged into
>>>>>the USB port. Then there would no hardware installation problem, and the thing
>>>>>would be portable, too. So carry it back and forth to your local chess club,
>>>>>maybe even run it on your laptop on an airplane. Take it wherever. Seems to me
>>>>>that would solve a lot of problems, if it could be done.
>>>>>
>>>>>And that gives it another advantage over the micros: You can't often legally
>>>>>install software on multiple computers for easy portability. With a DB box, all
>>>>>you'd need to install would be the basic software needed to interface with the
>>>>>box, just like Iomega the Iomega Tools disk, for example.
>>>>>
>>>>>Possible?
>>>>I think the only problem with this scheme is that you would have to have all the
>>>>memory for the chip included in the box as well.  Seems that it might be
>>>>expensive to do it that way.  The parallel port would be *way* too slow to store
>>>>the data to and from memory.  Basically, you would have to have a PC in the
>>>>little box, along with the Hsu chips, I think.  That is clearly doable, since
>>>>they have PC-on-a-board implementations, but it would be a lot more expensive
>>>>than a card with a chip on it that uses the PC resources.
>>>
>>>It's clear that the parallel port would be too slow, but he suggested using the
>>>USB port.  I doubt this would be fast enough either, but I am not informed: I
>>>don't really know how fast USB is.
>>>
>>>Dave
>>
>>
>>A couple of points.  USB/Parallel are too slow.  This is about high-speed
>>communication between the processor and the chess processor(s).  It was
>>originally built around VME bus speeds.  It needs the PCI speed at least.
>>
>>Second, I don't understand this hesitation to install a PC circuit board.
>>Comp-USA does a huge business here in Birmingham.  My wife knows _nothing_
>>about computer hardware, yet she has installed a fax modem and an ethernet
>>board in her office computer with no help.  _students_ are putting machines
>>together, much less installing a single board.  This is simply a non-issue.
>>
>>You remove the cover (2-5 screws), remove the blocking plate and throw it away
>>(1 screw), insert the PCI board and use the blocking plate screw to hold it in
>>the slot, replace the cover, and this is done.  It does _not_ require a high
>>degree of technical skill.  If someone can't follow a simple set of pictures
>>and instructions to accomplish this, then it is highly unlikely that person
>>can operate the computer at all.
>>
>>It is _trivial_ and _safe_.
>
>But then you find out the modem doesn't work because it has to be assigned to an
>IRQ below 10, which are all filled.  So a tech guy tells you to remove COM2 to
>make space, but that was the port your mouse used, so now you have no mouse, and
>have to get it running...
>
>Safe? Most likely, if you aren't a static electricity magnet.  Trivial?
>Usually, but not always.  And until it is, there will always be people nervous
>about messing something up.


I don't worry about IRQs. :)  Linux can handle one device per IRQ, or 10
devices per IRQ with absolutely no problems.  So we _never_ have to disable
something, or move jumpers, or anything else.  One day windows will be as
good?  :)

Bob



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