are we talking about the same puters lol?
--- cctalk-bounces at classiccmp.org
<ard at p850ug1.demon.co.uk> wrote:
> >
> > Before I open up both the Plus and the Portable
II,
> > can anyone tell me if the floppy drives are
swappable?
> > Obviously the Plus can't utilize a HD drive, but
what
> > about the other way around? Much appreciated.
>
> One thing I'll warn you about is that the ribbon
cables may not be what
> they seem. They have 20 pin connectors on the end,
but some of the
> 'wires' don't exist, that position on the cable is
solid plasic. Confused
> the hell out of me when I was looking isside a Mac+.
'Why is there -5V at
> that end of f the cable and the external eject
signmal at that end????' I
> am told the colour of the 'pin 1' stripe has some
significance, but I
> don't know the code.
>
> -tony
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I had heard somewhere that Compaq used non standard
drives, but perhaps that applies to different (newer?)
models.
--- cctalk-bounces at classiccmp.org <cclist at sydex.com>
wrote:
> On 30 Dec 2006 at 11:11, Chris M wrote:
>
> > are we talking about the same puters lol?
>
> I was wondering the same thing, myself. The Plus is
the hard disk
> successor to the original Portable. Both have ISA
buses and fairly
> normal PC peripherals (and lousy keyboards, IMOHO).
>
> http://utopia.knoware.nl/users/stuurmn/complus.htm
>
> At worst, adding a new card may require that you use
a half-length
> card; the card cage for both the plus and portable
can accommodate
> rather tall 8-bit ISA cards.
>
> Cheers,
> Chuck
>
>
>
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I posted this to CSA2 today. I figured you guys would want to download
these files. If you're anything like me, then you're a digital pack rat. ; )
In preparation for cutting my Apple IIe motherboard in half I decided
it would help to have an x-ray of the board. This way it will be easy
to determine the most efficient cut line.
I've included an X-Ray of a Disk II card just for fun.
The X-Rays are at 300dpi. I'm not an X-Ray tech so my calibration was
a little off. Our resident X-ray guy is gone today. I'm not sure he
would be interested in an Apple IIe motherboard any way. ; ) Some
areas are dark. By adjusting "Levels" in photoshop you can bring them
out.
The motherboard received a dose rate of 17.84 R/min for the scans and
calibration. About 27 minutes (for 3 scans and a calibration). This
would have been a dose of 482 Rad.
The Disk II card received the same dose rate, but it was in the vault
for the whole time the motherboard was in there. It received radiation
for a total of about 32 minutes. 571 Rad.
To put it in perspective, if a group of people were exposed to that
dose 50-90% would die after 30 days. (90% without intensive medical
care). Primary cause of death is internal bleeding and infections.
Females become permanently sterile.
Motherboard:
http://www.stockly.com/images2/061228-Apple_II_80kv6ma35ms36SFD-Cut%20Edges…
Disk II:
http://www.stockly.com/images2/061228-Disk_II_80kv6ma35ms36SFD-Cut%20Edges.…
Any comments?
Grant
Scott,
> At 3:41 PM -0800 12/29/06, Scott Quinn wrote:
> >I'm running a VAX 4000/200 with OpenVMS 7.2 (Hobbyist V2) on it, and
> >I'm having terrible problems with the networking. (DIGITAL
> >TCP/IP/UCX v5.0). It seems that there were some bugs in this
> >release, but I'm not yet sure exactly how to find the fixes for them
> >(and the HP/DIGITAL website doesn't seem to be very helpful).
> >Especially when running telnet, the VAX slows to a crawl. What have
> >other members with this problem (and no access to newer UCXes at
> >work or other locations) done?
If you're telnetting into the VAX from Linux, make sure to issue:
'export TERM=vt100' before you connect with the telnet command. The
string 'xterm' especially drives your VAX CPU usage through the roof,
for some reason I was never told. All I know is that specifying
'vt100' or another terminal type VAX knows will solve that problem
easily.
Josef
--
"I laugh because I dare not cry. This is a crazy world
and the only way to enjoy it is to treat it as a joke."
-- Hilda "Sharpie" Burroughs,
"The Number of the Beast" by Robert A. Heinlein
I'm running a VAX 4000/200 with OpenVMS 7.2 (Hobbyist V2) on it, and
I'm having terrible problems with the networking. (DIGITAL TCP/IP/UCX
v5.0). It seems that there were some bugs in this release, but I'm not
yet sure exactly how to find the fixes for them (and the HP/DIGITAL
website doesn't seem to be very helpful). Especially when running
telnet, the VAX slows to a crawl. What have other members with this
problem (and no access to newer UCXes at work or other locations) done?
DEC bigots can skip this message safely. :-)
I've been working on a TCP/IP stack for my beloved PCjr. There are
already TCP/IP stacks that run on it, but that's not the point.
Borrowing a page from Tony's book, I decided to write my own so that I
could fix the inevitable bugs.
Anyway, I'm interested in reducing memory consumption. Any complex code
involves tradeoffs between function and performance, and I've been
careful, but one thing that is bothering me is the initialization code.
I've got a fair amount of code that reads environment variables, talks
to the packet driver, and sets up data structures. The nature of the
code is that it runs once, and then just sits there consuming memory.
Waaay back in history I was a Zbasic user - Zbasic was a fairly nice
BASIC dialect/compiler. Zbasic had overlay support, which I used
extensively. It wasn't sophisticated, but it did the job. It would be
perfect for this code - init everything that I need, and then overlay
the init code with the run code.
Now 20 years later I'm using Turbo C++ 3.0 for this project, and it has
overlay support but it has a more complicated memory manager that goes
along with it. I don't have a lot of 'gas' in the code, so going to the
VROOOM overlay manager just to overlay my init code is overkill, and
will probably require more memory. I was hoping Borland had a simpler
mechanism ...
Any ideas? The only one I can think of is kind of brute force ... have
two apps, one that inits everything and leaves the storage resident, and
another that refers to that resident storage. (I was hoping for
something simpler in the Borland runtime support.)
Mike
PS: I'm still looking for a late version of Zbasic .. I had 4.02 and I
know that 4.71 was released. I'd love to see what it evolved to, but
that's a different topic.
Before I open up both the Plus and the Portable II,
can anyone tell me if the floppy drives are swappable?
Obviously the Plus can't utilize a HD drive, but what
about the other way around? Much appreciated.
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On 12/27/06, Jeff Walther <trag at io.com> wrote:
>
>
> This is a bit off-topic for the thread, but deals with the same
> philosophy of selling question.
> ...
Well, I shopped on ebay for 8250 UART's. I saw 19 pieces listed for $0.75
each. I offered best offer of $0.50 each for all. Of course I was rejected,
but to my surprise the price was then raised to $2.75 a piece. I am not
sure whether it was a price error or a new model of business. Fortunately I
am not so eager to get those chips, and I bought some from others for $0.50
a piece.
vax, 9000
> Jeff Walther
>
Lucky strike today :
10 swiss francs (7.50 USD) got me a ADM-3a in very reasonable cosmetic
state, with the dip-switch cover still intact, and with the optional
numeric keyboard.
On opening , I saw the unit even included the RG512 graphics option!
Not is all well , the crt has a severe case of moulding. This was
discussed before, I believe changing the CRT was the only good option ?
The unit also does not work. This might have to do with the can of Coke
that seems to have been emptied onto the keyboard and surroundings...
I will use my normal cleaning procedure of toothbrush and tapwater, and
letting things dry naturally.
Anyone have suggestions for the specific case of semi-dried Coke ?
Jos DReesen
>>
>> Mac portrait displays are presumably similarly difficult to get
>> replacement
>> CRTs for, at least without realigning the yoke (I gather that most
>> CRTs don't
>> like a change in orientation, although I used to run a Sun colour
>> display on
>
> Do colour portrait displays exist? The reason I ask is that I wonder if
> they use specially designed CRTs. IIRC, the whole point of the 'in line
> gun' (PIL) CRT was that the 3 electron gus were in a horizontal line,
> so
> that only the vertical component of the earth's magnetic field had much
> effect on the convergence, and that was relatively constant in a given
> area. So if the CRT was set up properly you could move the unit around
> without having to do a reconvergence (this was a problem with delta-gun
> CRTs which had to be set up in the positionan nnd orientation where
> they
> were going to be used, but if that was done they give an excellent
> picture).
>
> -tony
For a time anyway Radius produced the Color Pivot portrait/landscape
monitor.
When I was at school I saw a LCD that had an adjustment for (what would
that be? skew?) and for a while thought that someone had brought the
concept back. No dice, though.
