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'[EE]: To class'
2002\08\29@090523 by dr. Imre Bartfai

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Hi,

does somebody remember to DASD of type 2311? Those were times with full
7,5MB capacity...

Imre

On Thu, 29 Aug 2002, L-Soft list server at MITVMA.MIT.EDU (1.8d) wrote:

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2002\08\29@091944 by Dale Botkin

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Used to work on 2314 systems.  Saw and played with a string of 2311's
once, mechanically prety much the same actuator and all, just smaller.  I
think  3330's were my favorite, no more hydraulic oil!  8-)

Dale
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Your ass will be laminated.

On Thu, 29 Aug 2002, dr. Imre Bartfai wrote:

> does somebody remember to DASD of type 2311? Those were times with full
> 7,5MB capacity...

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2002\08\29@093220 by Bob Ammerman

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Indeed I do. Installed on IBM 1130

Bob Ammerman
RAm Systems


----- Original Message -----
From: "dr. Imre Bartfai" <EraseMErootspam_OUTspamTakeThisOuTPROF.PMMF.HU>
To: <PICLISTspamspam_OUTMITVMA.MIT.EDU>
Sent: Thursday, August 29, 2002 8:43 AM
Subject: Re: [EE]: To class


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2002\08\29@162220 by Russell McMahon

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> > does somebody remember to DASD of type 2311? Those were times with full
> > 7,5MB capacity...

> Indeed I do. Installed on IBM 1130

That's just over 46 * times the capacity of my first floppy disk drive ;-)

       RM


* - No. If I'd meant 41 I'd have said so :-)

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2002\08\30@093520 by Scott M. Thomas

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I had 2 of those 160k floppy drives and wondered what I was going to do with
all that storage.

-----Original Message-----
From: Russell McMahon [RemoveMEapptechspamTakeThisOuTPARADISE.NET.NZ]
Sent: Thursday, August 29, 2002 10:41 AM
To: PICLISTEraseMEspam.....MITVMA.MIT.EDU
Subject: Re: [EE]: To class


> > does somebody remember to DASD of type 2311? Those were times with full
> > 7,5MB capacity...

> Indeed I do. Installed on IBM 1130

That's just over 46 * times the capacity of my first floppy disk drive ;-)

       RM


* - No. If I'd meant 41 I'd have said so :-)

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2002\08\30@183228 by Russell McMahon

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> I had 2 of those 160k floppy drives and wondered what I was going to do
with
> all that storage.

On a clear disk you can seek forever.


               RM

>
> {Original Message removed}

2002\08\30@190315 by Barry Gershenfeld

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>> I had 2 of those 160k floppy drives and wondered what I was going to do
>with
>> all that storage.
>
>On a clear disk you can seek forever.
>                RM

How many of you, as your first organization step, copied everything
to a disk and labelled it "Everything"?

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'[EE]: To class'
2002\09\02@042239 by Alan B. Pearce
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>On a clear disk you can seek forever.

Actually I would have thought it should be

"On a clear disk you can store no data"

because all the oxide has worn off :))) or maybe "seek forever" means the
same thing :)

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2002\09\02@082757 by Russell McMahon

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> >On a clear disk you can seek forever.
>
> Actually I would have thought it should be
> "On a clear disk you can store no data"
> because all the oxide has worn off :))) or maybe "seek forever" means the
> same thing :)

The 1st is MEANT to bring to mind the aphorism

       "On a clear day you can see forever"

Obviously it didn't :-)



       RM

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2002\09\02@084045 by Alan B. Pearce

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>The 1st is MEANT to bring to mind the aphorism

>        "On a clear day you can see forever"

>Obviously it didn't :-)

It did bring that to mind. It was only after re-reading it I realised you
had written "seek" ;)

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2002\09\02@141429 by Peter L. Peres

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On Mon, 2 Sep 2002, Alan B. Pearce wrote:

>>On a clear disk you can seek forever.
>
>Actually I would have thought it should be
>
>"On a clear disk you can store no data"
>
>because all the oxide has worn off :))) or maybe "seek forever" means the
>same thing :)

Don't joke about this. I had some floppies that caught humidity and rusted
(unknown to me). When I put them in the computer they ate the drive heads
for lunch immediately. It took me a while to understand this. MSDOS 6.22
original install disks too. Doh.

Peter

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2002\09\02@194241 by Russell McMahon

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> Don't joke about this. I had some floppies that caught humidity and rusted
> (unknown to me). When I put them in the computer they ate the drive heads
> for lunch immediately. It took me a while to understand this. MSDOS 6.22
> original install disks too. Doh.

Old floppies can grow mould on the surface. They will transfer the mould to
the drive heads. Subsequent disks will not work. A disk cleaner may not
clean them well enough to make the drive work again. Long ago I found that
if you open the drive, use a cleaning disk well wetted with isopropyl
alcohol and apply extra mechanical pressure to push the heads onto either
side of the cleaning diskette (fingers are useful for this :-) ) then proper
cleaning occurs. This must violate all sorts of best practice practices :-).
YMMV, don't try this at home etc.

Storing floppies that you value in a suitable environment can help.

       RM

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2002\09\03@080809 by Olin Lathrop

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> Storing floppies that you value in a suitable environment can help.

Storing anything you value on a floppy without a decent backup is a bad
idea.  CD-Rs are much more reliable and will probably outlive the drives to
read them.


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2002\09\04@035733 by john

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provided you dont get any kind of fungus on the cd itself, i've lost a few to
a fungus that eats the media material !

On Tuesday 03 September 2002 02:06 pm, you wrote:
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2002\09\04@124326 by Peter L. Peres

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On Tue, 3 Sep 2002, Russell McMahon wrote:

>> Don't joke about this. I had some floppies that caught humidity and rusted
>> (unknown to me). When I put them in the computer they ate the drive heads
>> for lunch immediately. It took me a while to understand this. MSDOS 6.22
>> original install disks too. Doh.
>
>Old floppies can grow mould on the surface. They will transfer the mould to
>the drive heads. Subsequent disks will not work. A disk cleaner may not
>clean them well enough to make the drive work again. Long ago I found that
>if you open the drive, use a cleaning disk well wetted with isopropyl
>alcohol and apply extra mechanical pressure to push the heads onto either
>side of the cleaning diskette (fingers are useful for this :-) ) then proper
>cleaning occurs. This must violate all sorts of best practice practices :-).
>YMMV, don't try this at home etc.
>
>Storing floppies that you value in a suitable environment can help.

It was real genuine rust, in thin dendrils. Looked at it under a
microscope. Hard like glass too. Probably studded with incompletely rusted
ferrite granules. Excellent abrasive. I tried all sorts of things on the
dead floppy drive. Examination of the heads with a microscope showed they
were scratched badly.

Peter

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2002\09\04@142849 by Peter L. Peres

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On Tue, 3 Sep 2002, Olin Lathrop wrote:

>> Storing floppies that you value in a suitable environment can help.
>
>Storing anything you value on a floppy without a decent backup is a bad
>idea.  CD-Rs are much more reliable and will probably outlive the drives to
>read them.

I will forward your recommendation to Microsoft, who supplied the MSDOS
install disks ... ;-)

Peter

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