On Sep 24 2004, 15:39, Ade Vickers wrote:
>
> Additional: Hunting around for a suitable CPU to implement in relays,
I
> came across the P8 CPU design
(http://www.rexfisher.com/P8/P8_TOC.htm).
> This uses a 74LS181 4-bit ALU, which I reckon would require 149
relays to
> replicate. The only thing that confuzzles me is: what use, exactly,
is a
> 1-input AND? Several of these appear on the 74LS181 schematic...
I've not seen the specific diagram you're referring to, but are you
sure they're not NAND gates? There are a few in the diagram I have. A
1-input NAND is of course an inverter. But otherwise, a 1-input gate
could be used as a buffer (there are some inverters on the LS181 inputs
for that reason) or to equalise the gate delays along some particular
path to match another.
--
Pete Peter Turnbull
Network Manager
University of York
On Sep 24 2004, 7:27, Ed Kelleher wrote:
> Is the Museum of Automata still open in York (England)?
> Fascinating place that had all sorts of mechanical marvels like this.
> I remember an archer that would pull an arrow out of his quiver,
shoot it
> at a target, then retrieve the arrow and shoot again - all
mechanical.
> Amazing stuff.
Claude's Museum of Automata - no. Sadly, it closed after suffering
storm damage some years ago. It was up for sale for a while, but there
didn't seem to be any takers. I don't know what eventually happened to
the contents, but that's why you won't see it on the web :-(
--
Pete Peter Turnbull
Network Manager
University of York
ACP is a rather well known entity among computer people here in So.
California having sponsored the ACP swapmeet for many years. As such, I
rather doubt this is a joke. When I was there last year, they had some
interesting and some common computers on display. I gather that this
display was a small fraction of what they had, and as such, the starting
price does not seem that bad assuming that there is a fair amount of
"good stuff" that hasn't been mentioned in the ad. A quick glance at the
web site (http://www.thepcmuseum.net/) didn't show much in the way of
what I would term expensive stuff though. And of course, the reserve
price may be a bit high, but no way of knowing that!
> From: Jules Richardson <julesrichardsonuk(a)yahoo.co.uk>
>
> On Fri, 2004-09-24 at 08:02 -0400, Ed Kelleher wrote:
> > Wasn't this place mentioned the other day?
> >
> > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5125710949…
> >
> > Ed K.
>
> That is a joke, right?
>
On Sep 24 2004, 10:57, Jules Richardson wrote:
> Whether bevel gears could be made out of wood is another matter!
Nah, they're easy -- that's what disk-and-peg gears are.
--
Pete Peter Turnbull
Network Manager
University of York
OK, you lot get my whinge for today :-)
Does anyone else find that modern UIs with lots of pretty grahpics are
actually getting harder to use? I'm not sure if it's just me or not!
Having not used a recent Mac I can't comment there, but Windows and the
more popular of the Linux desktop environments seem to be suffering the
same fate in the last few years (and apps for both OS's):
Clear and simple icons and buttons have been replaced with complex
images (and the icons and buttons seem to have grown larger, taking up
more screen space)
Simple window borders have given way to windows with rounded corners,
or complex colour fades and other things in the title bars.
Backgrounds to UI components often seem to be images these days rather
than plain colour.
Colours seem to be chosen without any thought these days (as a
contrived example, blue buttons with a slightly darker shade blue
background panel)
I just wonder if I'm alone in finding modern UI's cluttered with
unnecessary visual features which distract the user from the task
they're doing, presumably waste CPU and memory resources, and don't
actually serve to make the OS/application any easier to use?
Thoughts welcome - personally just because CPU power and memory is cheap
I don't think it justifies making a user interface harder to use! In the
case of interfaces where look is configurable, at least app vendors
could choose the one that makes the product easier to use rather than
the one filled with the most graphics...
Anyway, rant over. Thankyou for tuning in :-)
cheers,
Jules
You might be a Floridian if:
You exhibit a slight twitch when introduced to anyone named Bonnie,
Charley, Frances, Ivan, Jeanne, or Karl.
Your freezer never has more than $20 worth of food in it any given time
You're looking at paint swatches for the plywood on your windows, to accent
the house color.
You think of your hall closet/saferoom as "cozy".
Your pool is more accurately described as "framed in" than "screened in".
Your freezer in the garage now only has homemade ice in it.
You no longer worry about relatives visiting during the summer months.
You, too, haven't heard back from the insurance adjuster.
You now understand what that little "2% hurricane deductible" phrase really
means.
You're putting a collage together on your driveway of roof shingles from
your neighborhood.
You were once proud of your 16" electric chain saw.
Your "Stop Sign" on your street is replaced with a "NO WAKE" sign.
You now own 5 large ice chests.
Your parrot can now say" hammered, pounded and hunker down".
You recognize the same people in line at the free ice, gas and plywood
locations.
You clap and wave when you see a power truck, cable truck or telephone
service truck come down your street.
You stop clapping when they don't stop.
You have Home Depot and Lowes in your cellular phonebook.
You've spent more than $20 on "Tall white kitchen bags" to make your own
sand bags.
You're considering upgrading your 16" chainsaw to a 20".
You know what "Bar chain oil" is.
You're thinking of getting your wife the hardhat with the ear protector and
face shield for Christmas.
You now think that a $6000 whole house generator seems reasonable.
You look forward to family discussions about the merits of "cubed, block
and dry ice".
Your therapist refers to your condition as "generator envy".
You fight the urge to put on your winter coat and wool cap and parade
around in front of your picture window, when you finally get power and your
neighbor across the street, with the noisy generator, doesn't get electric.
And finally, you might be a Floridian if:
You ask your sister up north to start saving the Sunday Real Estate
classifieds!
Hi Glen
Not sure if you can help, but came across a post on Classiccmp referring to
files for the HP 10342B Bus predecessor. I am looking for these files , can
you help?
Many Thanks
Richard
>From: "Gene Buckle" <geneb(a)deltasoft.com>
>
>On Thu, 23 Sep 2004, Michael Sokolov wrote:
>
>> Teo Zenios <teoz(a)neo.rr.com> wrote:
>>
>> > Scientists think an asteroid, comet, or meteorite cause the Tunguska
>> > explosion in Russia in the early 20th century that behaved just like a
>> > nuclear bomb does today (intense energy, heatwave, shockwave, radiation).
>>
>> This is not what happened. Lyn Buchanan, a very good remote viewer
>> whom I know fairly well, has told the real story in his book The Seventh
>> Sense:
>>
>> -- quote from the book: --
>>
>> Once I was given a set of coordinates by Ted, who has been mentioned
>> before in this book. Ted is a rabid UFO fanatic, and liked to sneak UFO
>> targets into our tasking now and then. This was forbidden, but he
>> sometimes did it anyway. I thought that the target on this particular
>> day was an operational target and was not expecting an ET target.
>>
>*cough*hooey!*cough*
>
>g.
>
Thank you Gene. My sentiments exactly.
Dwight
On Sep 23 2004, 21:50, Jules Richardson wrote:
> I was just thinking that it would be an interesting challenge to
build a
> fully mechanical version - no electrical parts whatsoever.
Steam-powered
> pong, that'd be different... "Babbage Pong", maybe... :-)
OK, but you have to use proper graphited yarn instead of PTFE and
O-rings. Or use compressed air - you can buy the gates off the shelf
if you're rich enough.
> And given the light loading involved, why not use wooden gearing
instead
> of metal: "Organic Pong"...
Ow! If you'd ever tried to build wooden gears that don't self-strip...
Of course, you could go the whole hog and use disks with pegs in them,
and a water wheel to power it, but you'd be in for a surprise when you
find out how much energy it takes to turn such constructions :-)
--
Pete Peter Turnbull
Network Manager
University of York
On Sep 23 2004, 21:16, Doc Shipley wrote:
> Pete Turnbull wrote:
>
> > The term LSI-11 refers to either the original set of boards
including
> > the M7264 which could be used to build a system, or more
specifically
> > to the M7264 KD11-F processor card. A PDP-11/03 is, strictly
speaking,
> > a DEC-packaged system, the early ones being an BA11-M box, or an
11V03
> > system in a BA11-N and with RX01 drives.
> Errr, my 11v03 has RX02s, thank you. Although it's very possible
> they're an upgrade.
Maybe, but they could be original. I only meant the early ones had
RX01s.
--
Pete Peter Turnbull
Network Manager
University of York
