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W

Wolf K

On 18/11/2011 12:13 AM, R. C. White wrote:
Snip interesting ;-) history
The thin Mylar film in 5.25" diskettes were encased in stiff black
paper, just like the larger 8" floppies.
[snip]

IIRC the sleeve was plastic (probably vinyl).

Wolf K.
 
W

Wolf K

PS. Just an afterthought but which is correct? *Data is* or *Data are*?
Let's not forget that Data is the plural of Datum. So Data itself is a
plural word!!!!!
It's usage, which is (as you might expect) changing as we type. Most
people interpret "data" as "a pile of stuff", hence "data is." I prefer
"data are", but I'm an old fogey, so my preference doesn't count.

Hah!

Wolf K.
 
J

James Silverton

On 18/11/2011 12:13 AM, R. C. White wrote:
Snip interesting ;-) history
The thin Mylar film in 5.25" diskettes were encased in stiff black
paper, just like the larger 8" floppies.
[snip]

IIRC the sleeve was plastic (probably vinyl).

Wolf K.
I would have said paper too but I just now looked at a 5 inch floppy and
the casing seems probably plastic tho' it's textured with a paper-like
surface.

--


James Silverton, Potomac

I'm *not* (e-mail address removed)
 
J

James Silverton

It's usage, which is (as you might expect) changing as we type. Most
people interpret "data" as "a pile of stuff", hence "data is." I prefer
"data are", but I'm an old fogey, so my preference doesn't count.

Hah!

Wolf K.
I go along with you there and usually say "the data are" but I've
caught myself both saying and writing "the data is" using "data" as a
collective noun, which is pretty common these days. The same thing
happens with "media".

--


James Silverton, Potomac

I'm *not* (e-mail address removed)
 
S

Stephen Wolstenholme

I am not going to argue with you but I know that you can mess up even a
hard drive with a magnet. And a pocketful of even weak magnets around a
flash drive can easily mess it up, I would have thought. Why don't you
put your idea to a real life test? I've got a nice strong magnet you can
rest on your hard drive and your USB stick/s!
Flash sticks are not susceptible to magnets though it would be
interesting to take one through an MRI scanner.

Steve

--
Neural network software applications, help and support.

Neural Network Software. www.npsl1.com
EasyNN-plus. Neural Networks plus. www.easynn.com
SwingNN. Forecast with Neural Networks. www.swingnn.com
JustNN. Just Neural Networks. www.justnn.com
 
C

choro

I go along with you there and usually say "the data are" but I've caught
myself both saying and writing "the data is" using "data" as a
collective noun, which is pretty common these days. The same thing
happens with "media".
Or "is" as in "The class is dismissed!"
-- choro
 
T

Tony

Revo Uninstaller Pro
I was stupid enough to instal Windows Live Mail on my Windows 7 Home
system and now cannot get totally rid of it.
In Resource Monitor I can see Hundreds of entries under svchost.exe
(secsvcs) reading the hard disc thousands of bytes per second. This
eats up a large chunk of memory and slows the computer to a crawl.
How can I rid myself of this awful program.

TIA
Iain
--
The Grandmaster of the CyberFROG

Come get your ticket to CyberFROG city

Nay, Art thou decideth playeth ye simpleton games. *Some* of us know
proper manners

Very few. I used to take calls from *rank* noobs but got fired the first
day on the job for potty mouth,

Bur-ring, i'll get this one: WHAT'S YOUR PROBLEM JERK!!? We're here to
help you dickweed, ok, ok give the power cord the jiggily piggily
wiggily all the while pushing the power button repeatedly now take
everything out of your computer except the power supply and *one* stick
of ram. Ok get the next sucker on the phone.

Deirdre Straughan (Roxio) is a LIAR (Deirdre McFibber)

There's the employer and the employee and the FROGGER and the FROGEE,
which one are you?

Hamster isn't a newsreader it's a mistake!

El-Gonzo Jackson FROGS both me and Chuckcar (I just got EL-FROG-OED!!)

I hate them both, With useless bogus bullshit you need at least *three*
fulltime jobs to afford either one of them

I'm a fulltime text *only* man on usenet now. The rest of the world
downloads the binary files not me i can't afford thousands of dollars a
month

UBB = User based bullFROGGING

Master Juba was a black man imitating a white man imitating a black man

Using my technical prowess and computer abilities to answer questions
beyond the realm of understandability

Regards Tony... Making usenet better for everyone everyday

This sig file was compiled via my journeys through usenet
 
S

Stephen Wolstenholme

As an aside, the most powerful magnets that I've personally seen can
be found inside hard drives. I accidentally let two of them get too
close together and had to separate them with two pairs of pliers.
When I was working on hardware we needed to replace the head carriage
on a large CDC drive. The engineer who removed the carriage put it
down on the next drive. It clamped itself to the drive cover snapping
at his fingers. We replaced the head carriage and the drive cover and
sent the lot back to CDC.

Steve


--
Neural network software applications, help and support.

Neural Network Software. www.npsl1.com
EasyNN-plus. Neural Networks plus. www.easynn.com
SwingNN. Forecast with Neural Networks. www.swingnn.com
JustNN. Just Neural Networks. www.justnn.com
 
S

Stephen Wolstenholme

On 18/11/2011 12:13 AM, R. C. White wrote:
Snip interesting ;-) history
The thin Mylar film in 5.25" diskettes were encased in stiff black
paper, just like the larger 8" floppies.
[snip]

IIRC the sleeve was plastic (probably vinyl).

Wolf K.
I would have said paper too but I just now looked at a 5 inch floppy and
the casing seems probably plastic tho' it's textured with a paper-like
surface.
The cover materials aren't always plastic. I have just looked at an
ancient 5 1/4" floppy stuck on the cover of a book from 1978. It is
definitely in a paper sleeve.

Steve

--
Neural network software applications, help and support.

Neural Network Software. www.npsl1.com
EasyNN-plus. Neural Networks plus. www.easynn.com
SwingNN. Forecast with Neural Networks. www.swingnn.com
JustNN. Just Neural Networks. www.justnn.com
 
S

Steve Hayes

I thought data in flash drives is stored in bricks and mortar or in
reinforced cement in some of the later models. More solid and safer than
sand castles! ;-)
Hmmmm.

-- choro

PS. Just an afterthought but which is correct? *Data is* or *Data are*?
Let's not forget that Data is the plural of Datum. So Data itself is a
plural word!!!!!
It depends how you think of it -- same with government is and government are.

This government is the worst we've had this century.
The government are considering revising the law on tea pots.
 
I

Ian Jackson

choro <[email protected]> said:
She might have appreciated it more had you shown her your stiffy! ;-)
There must be a joke in there somewhere, like "Is that a 3.5" 1.44MB
computer disk in your pocket, or are you just pleased to see me?"
 
A

Allen

When I was working on hardware we needed to replace the head
carriage on a large CDC drive. The engineer who removed the carriage
put it down on the next drive. It clamped itself to the drive cover
snapping at his fingers. We replaced the head carriage and the drive
cover and sent the lot back to CDC.

Steve
A trip back in history--
In the mid 1950s I was drafted and wound up in a Nike I battery. ((The
Nike was a SAM (surface to air missile) and was an anti-aircraft
weapon.)) The largest radar had a 500 KW magnetron, containing two very
powerful magnets When we had one of these on the workbench we could have
nothing else on the bench with it, as it would swoop up large
screwdrivers from two feet away. One day we had a totally shot one and
we decided to take it apart. In the process the two magnets got stuck
together and nothing we tried would even begin to separate them.
 
G

Gene E. Bloch

The TRS-80 used soft-sector
diskettes, with only a single sensing hole; TRSDOS could use timing of the
spin speed to determine positions of the 10 sectors.
IIRC, the drive just counted the sectors, starting after the hole passed
the photocell. But 3-1/2" floppies don't even have a hole.

Hard drives identify the sector by a code embedded in the overhead data
portion of each sector. It's possible that some soft sector floppies did
this; I don't know. I know it was always true of hard drives, because it
was possible to reorder the sectors on a hard drive to improve
performance, although I think all the improvement I experienced in
trying it was due to the placebo effect.
The thin Mylar film in 5.25" diskettes were encased in stiff black paper,
just like the larger 8" floppies. (I still have the one that I cut open to
inspect.) This made the diskettes easier to handle and harder to damage,
but they still were somewhat floppy. Each one had a squarish notch cut in
one corner; a sensor inside the drive could detect this and tell if we had
inserted the diskette upside down.
The notch was a write-protect/enable device only. Any floppy could be
read, but to write to it, you had to remove an opaque sticker from the
notch. The 3-1/2" floppies used an opaque slider in a slot instead (the
reverse convention was used on 8" floppies).

I did some fact checking here:
http://en.wikipedia.org/wiki/Floppy_disk#3.C2.A01.E2.81.842-inch_floppy_disk

rather than trusting my memory 100%. It was a good idea :)
 
G

GreyCloud

OMG! The price of the Trash-80!

I had not remembered that...
Since you mentioned price,... I had to go look at it again.
Whoa! $3900 with 64k ram?
It had a 68000 cpu and the option of running Xenix.
 
S

SC Tom

Gene E. Bloch said:
IIRC, the drive just counted the sectors, starting after the hole passed
the photocell. But 3-1/2" floppies don't even have a hole.

Hard drives identify the sector by a code embedded in the overhead data
portion of each sector. It's possible that some soft sector floppies did
this; I don't know. I know it was always true of hard drives, because it
was possible to reorder the sectors on a hard drive to improve
performance, although I think all the improvement I experienced in
trying it was due to the placebo effect.


The notch was a write-protect/enable device only. Any floppy could be
read, but to write to it, you had to remove an opaque sticker from the
notch. The 3-1/2" floppies used an opaque slider in a slot instead (the
reverse convention was used on 8" floppies).

I did some fact checking here:
http://en.wikipedia.org/wiki/Floppy_disk#3.C2.A01.E2.81.842-inch_floppy_disk

rather than trusting my memory 100%. It was a good idea :)
Wasn't there another write-protect notch on the opposite edge that distinguished between a single-sided and double-sided
5-1/4" floppy? Seems to me you could cheat some of the 760K ones to get a 1.2M one by cutting the second notch into a
single-sided. It didn't always work since some of the single-sided ones were double-sided, but one side (the unused one)
wasn't of the same quality as the usable side.

About a year ago (or longer, it all runs together sometimes) I threw out my last 5-1/4" drive and all of the floppies
since I didn't have a MB with an interface for it. I still have a 3-1/2" drive on the shelf and a few floppies, even
though my MB doesn't have a hook-up for it either. Just can't give it up yet.

Remember the old joke, What's the difference between a woman and a computer? Most computers will take a 3-1/2" floppy,
but most women won't!!
Yuk, yuk, funny at the time :)
 
S

SC Tom

SC Tom said:
Wasn't there another write-protect notch on the opposite edge that distinguished between a single-sided and
double-sided 5-1/4" floppy? Seems to me you could cheat some of the 760K ones to get a 1.2M one by cutting the second
notch into a single-sided. It didn't always work since some of the single-sided ones were double-sided, but one side
(the unused one) wasn't of the same quality as the usable side.

About a year ago (or longer, it all runs together sometimes) I threw out my last 5-1/4" drive and all of the floppies
since I didn't have a MB with an interface for it. I still have a 3-1/2" drive on the shelf and a few floppies, even
though my MB doesn't have a hook-up for it either. Just can't give it up yet.

Remember the old joke, What's the difference between a woman and a computer? Most computers will take a 3-1/2" floppy,
but most women won't!!
Yuk, yuk, funny at the time :)
Never mind. I should have read the whole article. Another case of premature posting :-(
 
S

SC Tom

GreyCloud said:
Since you mentioned price,... I had to go look at it again.
Whoa! $3900 with 64k ram?
It had a 68000 cpu and the option of running Xenix.
And for another 2 grand, you could get that nifty line printer :)
 
R

R. C. White

Hi, Gene.

Thanks for the reminder and correction on the write-protect notch. Now I
recall that the diskettes were sold with those (usually) silvery stickers to
put over the notch to protect their contents.

That's also why we had to cut the notch to use the second side of a diskette
in a single-side drive. Simply inserting the diskette backwards would mean
that it was always seen as write-protected - until we cut the notch.

RC
--
R. C. White, CPA
San Marcos, TX
(e-mail address removed)
Microsoft Windows MVP (2002-2010)
Windows Live Mail 2011 (Build 15.4.3538.0513) in Win7 Ultimate x64 SP1


"Gene E. Bloch" wrote in message

The TRS-80 used soft-sector
diskettes, with only a single sensing hole; TRSDOS could use timing of the
spin speed to determine positions of the 10 sectors.
IIRC, the drive just counted the sectors, starting after the hole passed
the photocell. But 3-1/2" floppies don't even have a hole.

Hard drives identify the sector by a code embedded in the overhead data
portion of each sector. It's possible that some soft sector floppies did
this; I don't know. I know it was always true of hard drives, because it
was possible to reorder the sectors on a hard drive to improve
performance, although I think all the improvement I experienced in
trying it was due to the placebo effect.
The thin Mylar film in 5.25" diskettes were encased in stiff black paper,
just like the larger 8" floppies. (I still have the one that I cut open
to
inspect.) This made the diskettes easier to handle and harder to damage,
but they still were somewhat floppy. Each one had a squarish notch cut in
one corner; a sensor inside the drive could detect this and tell if we had
inserted the diskette upside down.
The notch was a write-protect/enable device only. Any floppy could be
read, but to write to it, you had to remove an opaque sticker from the
notch. The 3-1/2" floppies used an opaque slider in a slot instead (the
reverse convention was used on 8" floppies).

I did some fact checking here:
http://en.wikipedia.org/wiki/Floppy_disk#3.C2.A01.E2.81.842-inch_floppy_disk

rather than trusting my memory 100%. It was a good idea :)
 
C

Char Jackson

Hi, Gene.

Thanks for the reminder and correction on the write-protect notch. Now I
recall that the diskettes were sold with those (usually) silvery stickers to
put over the notch to protect their contents.

That's also why we had to cut the notch to use the second side of a diskette
in a single-side drive. Simply inserting the diskette backwards would mean
that it was always seen as write-protected - until we cut the notch.
Here's a cute web page with some old computer ads, including a photo
of a hole punch that was popular at the time for doubling the capacity
of a floppy.

<http://freerepublic.com/focus/f-chat/2805630/posts?page=58>

The punch is about 80% of the way down the page, and carries the
comment, "Oh and lets not forget this little gem! Nothing better than
doubling your storage by notching out that write hole so you could
flip the disk over and write on the back side when your drive was
single sided." :)
 

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