<Any Unix clones for 8080/Z80 systems? It ought to be doable, given that th
<original Unix was done on a 64KB address space machine...
Uzi in a 64k machine required 32k of it for the kernel and the rest for
apps. It was a full swaping scheme so hard disk for similar was a must
have. Banking/mmu made it more palateable as you could have the kernel in
it's own space.
IT was not uncommon if you could afford the cost (in late 81 it was about
$159 for 64k) of ram to have large banked memory on s100 in the early 80s.
I was running a multi z80 system then with 256k.
Yes, UZI unix, see WWW.psyber.com/~tcj as they have a page on it. IT was
z80 FYI and has been ported to z180 and z280.
Allison
Yesterday someone posted about a company that makes printer adapters for
the iMAC. This morning I found a site that makes adapters to let you use
ABD, USB and serial devices for the iMAC. "http://www.griffintechnology.com/"
Joe
OK, this may be the same guy. Now they say they're willing to ship.
-=-=- <snip> -=-=-
From: cvt(a)sprynet.com
Newsgroups: comp.sys.dec
Subject: Free in NYC: VAXstation and DECstation
Date: Mon, 25 Jan 1999 10:00:38 GMT
Organization: Deja News - The Leader in Internet Discussion
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Xref: news1.jps.net comp.sys.dec:5896
A VAXstation 3100 (with color monitor and VMS manual set)
and a DECstation 3100 (also with color monitor) available in
New York City. Both machines work. A TK-50 drive is also
available for either of these. The VMS manuals are also
available separately.
The machines may be picked up -- or will be shipped if
recipient makes the necessary arrangements (we will pack
them in their original cartons).
For more information, call 212 662-0263.
-----------== Posted via Deja News, The Discussion Network ==----------
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho,
Blue Feather Technologies -- kyrrin (at) bluefeathertech [dot] com
Web: http://www.bluefeathertech.com
"...No matter how we may wish otherwise, our science can only describe an object,
event, or living thing in our own human terms. It cannot possibly define any of them..."
>Let us not forget the *amazing* diversity of form in the PC market in the
>last 10 years! I have laptops, pen-based machines, hermetically sealed
>touchscreen boxes, handhelds, luggables, even credit card PCs that are
>distinctly classics and generally less than even 10 years olds.
I nominate the HP 200LX as a definite classic. It's a handheld XT clone
that has a very loyal following, and that is still being made (despite HP's
support of Windows CE which *theoretically* is supposed to make
handheld DOS machines obsolete...)
- Joe
Too far for me, perhaps someone else can make it?
-=-=- <snip> -=-=-
From: hudson17(a)my-dejanews.com
Newsgroups: comp.os.vms
Subject: Free VAXstation in New York
Date: Mon, 25 Jan 1999 09:47:13 GMT
Organization: Deja News - The Leader in Internet Discussion
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Xref: news1.jps.net comp.os.vms:17888
Free VAXstation 3100 available in New York City.
Color monitor, TK-50. Works. Also available VMS 5.x
full manual set.
Must be picked up before 1/31.
Respond via e-mail or call 212 662-0263.
-----------== Posted via Deja News, The Discussion Network ==----------
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
-=-=-=-=-=-=-=-=-
Bruce Lane, Owner and head honcho,
Blue Feather Technologies -- kyrrin (at) bluefeathertech [dot] com
Web: http://www.bluefeathertech.com
"...No matter how we may wish otherwise, our science can only describe an object,
event, or living thing in our own human terms. It cannot possibly define any of them..."
On Jan 22, 19:16, Hans Franke wrote:
> Subject: Re: OT: Alien Media (was Disasters and Recovery)
> Excuse me if I interupt, but you are talking about measuring
> a specific voltage. But thats completly independant from the
> definition. Only if you want to define Volt based on some
> specific reproduceable effect - but thats not necesaty. To
> get all electrical units you just need the 7 basic SI units
> (Length, Weight, Time, Current, Temperature, Brightnes (?)
> and Mol (sorry, no idea how to translate Stoffmasse)) and
length metre m
mass kilogram kg
time second s
electric current ampere A
thermodynamic temperature kelvin K
luminous intensity candela cd
amount of substance mole mol
> only one is an electric unit (the Ampere). And only these
> 7 units have to be defined on specific, reproducable effects.
> 1V is defined as 1 kg m^2 / A s^2.
As Hans implies, all other units are derived from these seven (and the two
angular measures). But the volt is defined as kg m^2 / (A s^3) -- Hans
lost a "per second" (Hertzlos, I suppose ;-).
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
>> Really? The meter is defined (certain frequency of light from a
certain
>> element for so many waves yada yada). Sea level is defined (don't know
the
>> SI unit, but 780 millibars of pressure). Celcius is defined (0 is
freezing
>> point of pure water at sea level, 100 boiling point of pure water at sea
>> level) and that's all you need to define the gram: one cubic centimeter
of
>> water at 4C at sea level. That also gets you volume (liters).
>>
> I thought length, mass (Kilogram), and time (seconds) were picked as the
> basic SI units, and others, like temperature, were "secondary". For
> electromagnetics,
> a 4'th unit was required, sometimes an ampere (which can be defined from
> mechanical variables), sometimes charge.
> -Dave
In 1902, when the system was proposed, the base units were indeed metre,
kilogram and second. The IEC recommended that the ampere be added as the
fourth unit, and this was finally standardised in 1948.
SI now has seven base units:
Metre, Kilogram, Second, Ampere, Kelvin, Mole and Candela (normally used
without initial capitals btw).
There are two supplementary units, the radian and the steradian.
All other units are derived from these.
Philip.
On Jan 21, 21:07, Sam Ismail wrote:
> Subject: Re: Reiability of wrong media (was: is out of 5-1/4" diskettes
> On Thu, 21 Jan 1999, Megan wrote:
>
> > I think the problem with '1.44 Mb' is that IBM chose to refer to
> > the exact number of bytes without using the power-of-two term
> > properly.
> >
> > For example... on pdp-11s, the virtual address space is always
> > referred to as 64 Kb... but the actual max (byte) address is
> > 65535. If we were to follow what it appears IBM did, we would
> > have been referring to 65.5 Kb.
>
> No, a megabyte is not a power of two number. A megabyte = 1,000,000
> bytes. So 1.44 megabytes = 1.44 million bytes = roughly 1,440,000 bytes.
>
> So 1.44MB disk drive is not a misnomer.
As Megan pointed out, the maths is wrong. A "1.44MB" disk has 80
cylinders, two sides, 18 sectors per track, sector size 512 bytes.
80 * 2 * 18 * 512 = 80 * 18 * 1024 = 1440KB
That's where the "1.44" number comes from.
And a Megabyte is normally held to be 1024 * 1024 (megabyte would, I agree,
be different, 1000 * 1000). But "1.44MB" refers to 1.44 * 1000 * 1024,
which is a ridiculous way to count. 1440KB = 1.406MB.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Spotted this in a Linuxtoday.com article on the latest
linux kernel:
"On somewhat of a tangent, there is continuing work to
support a subset of the Linux kernel on 8086, 8088,
80186, and 80286 machines. This project will never
integrate itself with Linux-proper but will provide
an alternative Linux-subset operating system for
these machines. "
Hmmm, I do have *a* 'C' compiler running on one of those
Compaq luggables...
Chuck
cswiger(a)widomaker.com
Hi folks,
Recently we were discussing a Russian source of old radios and old
computers. It was prompted by a posting to ClassicCmp from a Russian site
("The Old Radios Trade <oldradios(a)radiolink.net>") with a title "Old
Radios" (Date: Thu, 24 Dec 1998 00:08:36 +0300.) Check the CC archives if
you want as it's not needed to post here. I politely wrote back saying this
was a forum for old computers upon which I got a quick reply stating
(basicly) they could get us any computer we desired. See "Fwd: Re: Old
Radios" (Date: Thu, 24 Dec 1998 17:56:54 -0500.) Most of us I hope,
figured this is a scam and stayed away.
Just recently, one of our members had written here indicating they were
interested in feedback on these characters.
Well, on the newsgroup rec.antiques.radio+phono there is some feedback.
DejaNews should have the thread "WARNING-RUSSIAN RADIO TRADING FRAUD!!!"
>from 15 Jan. Apparently some folks got hitup for some bucks and got no
radios. Partial quote from one of the postings:
>This is a cautionary post to warn you all about an apparently
>unscrupulous dealer in Russian collectables, including antique radios.
>He sends letters by E-mail, soliciting business, under the trade name of
>RadioTrade, or The Old Radio Trader, trading under the name, currently,
>of either
>Oleg Tikhonov, or Walentin Mihaylin. He is offering to sell several Red
>Star radios, as well as other portables, and possibly a wooden Russian
>table set called Belarus 53. He sends E-mail originating from Kaluga, a
>city near Moscow. The scam is that he will have funds sent to him, and
>they will either be lost in transit, or sent back to you as a refund,
>and then have them lost in transit, when in reality, an empty envelope
>will be sent to you as a registered packet. I have been personally
>ripped off of a fair sum of money, and he has attempted to arrange
I guess those folks were a bit more interested in scoring a Russian radio
than in understanding what they should have previously heard in the major
news media about the latest Russian scams coming along nowadays. Or, they
simply lacked common sense to judge this as "Too good to be true".
Enough said on this. Just be aware of it if you are looking for Russian or
other ex-Soviet block machines.
Regards, Chris
-- --
Christian Fandt, Electronic/Electrical Historian
Jamestown, NY USA cfandt(a)netsync.net
Member of Antique Wireless Association
URL: http://www.ggw.org/freenet/a/awa/