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Why are they called 3.5 inch drives ?



 
 
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  #16  
Old August 27th 20, 03:47 PM posted to alt.comp.os.windows-10
Ken Blake[_7_]
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Posts: 569
Default Why are they called 3.5 inch drives ?

On 8/26/2020 4:46 PM, Big Al wrote:
On 8/26/20 7:36 PM, this is what VanguardLH wrote:
DerekF wrote:

VanguardLH wrote:

DerekF wrote:

When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.

Size is based on the diameter of the platters, not the case. Obviously
a 3.5" diameter platter cannot fit inside a 3.5" case.

https://en.wikipedia.org/wiki/List_o...e_form_factors
(found using an online search)

I thought it must be that but it must confuse many.


Shugart (who became Seagate) introduced the 5.25" form factor back in
1980 (40 years ago). The 3.5" form factor arrived in 1983 (37 years
ago). The 2.5" form factor arrived in 1988 (32 years ago).

And now we have the little M2 drives. M2. 2242 are 22mmx42mm, kinda small.
That's .866in x 1.654in



Yes, but those are SSDs, not disk drives.

--
Ken
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  #17  
Old August 27th 20, 05:03 PM posted to alt.comp.os.windows-10
DerekF
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Posts: 10
Default Why are they called 3.5 inch drives ?

On 27/08/2020 13:32, Jenny Telia wrote:
On 27/08/2020 00:23, DerekF wrote:
On 26/08/2020 20:51, MikeS wrote:
On 26/08/2020 18:33, DerekF wrote:
On 26/08/2020 18:13, VanguardLH wrote:
DerekF wrote:

When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.

Size is based on the diameter of the platters, not the case.Â* Obviously
a 3.5" diameter platter cannot fit inside a 3.5" case.

https://en.wikipedia.org/wiki/List_o...e_form_factors
(found using an online search)

I thought it must be that but it must confuse many.
Derek
I doubt it. You seem to be the first. The secret is in their full name
- 3.5 inch *disk* drive.

I'll do a survey outside our local computer store tomorrow.


I suggest a survey outside your local computer museum. Who still uses
3.5" disk drives?

They still sell them do they not and all the top makers supply them.
I bought a new PC for my wife who does not need anything faster and got
one that I am going to add a 3.5 drive to.
Derek
  #18  
Old August 27th 20, 05:05 PM posted to alt.comp.os.windows-10
DerekF
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Posts: 10
Default Why are they called 3.5 inch drives ?

On 27/08/2020 15:45, Ken Blake wrote:
On 8/27/2020 5:32 AM, Jenny Telia wrote:
On 27/08/2020 00:23, DerekF wrote:
On 26/08/2020 20:51, MikeS wrote:
On 26/08/2020 18:33, DerekF wrote:
On 26/08/2020 18:13, VanguardLH wrote:
DerekF wrote:

When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.

Size is based on the diameter of the platters, not the case.
Obviously
a 3.5" diameter platter cannot fit inside a 3.5" case.

https://en.wikipedia.org/wiki/List_o...e_form_factors
(found using an online search)

I thought it must be that but it must confuse many.
Derek
I doubt it. You seem to be the first. The secret is in their full name
- 3.5 inch *disk* drive.
I'll do a survey outside our local computer store tomorrow.


I suggest a survey outside your local computer museum. Who still uses
3.5" disk drives?



You apparently think that 3.5" disk drive means 3.5" *diskette* drive.
That's not correct. There are 3.5" hard drives. In fact, *most* hard
drives are 3.5".


I don't actually think that at all. It was a random thought as to what
the averah=ge man in the street would think.
Derek.
  #19  
Old August 27th 20, 05:10 PM posted to alt.comp.os.windows-10
DerekF
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Posts: 10
Default Why are they called 3.5 inch drives ?

On 27/08/2020 10:36, Carl Kaufmann wrote:
DerekF wrote:
When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Derek


For a good laugh, look up the various dimensions of the ubiquitous 2"x4"
over time.

I thought that was a piece of wood :-)
Derek
  #20  
Old August 27th 20, 06:42 PM posted to alt.comp.os.windows-10
Paul[_32_]
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Posts: 11,873
Default Why are they called 3.5 inch drives ?

Jenny Telia wrote:
On 27/08/2020 00:23, DerekF wrote:
On 26/08/2020 20:51, MikeS wrote:
On 26/08/2020 18:33, DerekF wrote:
On 26/08/2020 18:13, VanguardLH wrote:
DerekF wrote:

When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Size is based on the diameter of the platters, not the case. Obviously
a 3.5" diameter platter cannot fit inside a 3.5" case.

https://en.wikipedia.org/wiki/List_o...e_form_factors
(found using an online search)

I thought it must be that but it must confuse many.
Derek
I doubt it. You seem to be the first. The secret is in their full name
- 3.5 inch *disk* drive.

I'll do a survey outside our local computer store tomorrow.


I suggest a survey outside your local computer museum. Who still uses
3.5" disk drives?


I've got around two dozen hard drives (3.5") and
maybe five SSDs (2.5"). They actually make SSDs
at 3.5", but... no one can afford them. They're
$10K to $20K or so. They have sufficient capacity,
you can write them at max SATA rate for five years,
without being able to use up the wear life of the
flash inside the drive.

WD6003FZBX (the last HDD I bought) 1" high, 6TB. 250MB/sec or so OD.

https://i.ebayimg.com/images/g/tdAAA...ta9/s-l640.jpg

HDTune Free doesn't bench the entire drive.

https://i.postimg.cc/FFTBdWvt/HDD-vs-SSD.gif

Paul
  #21  
Old August 27th 20, 08:24 PM posted to alt.comp.os.windows-10
VanguardLH[_2_]
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Posts: 10,881
Default Why are they called 3.5 inch drives ?

DerekF wrote:

Carl Kaufmann wrote:

DerekF wrote:

When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.


For a good laugh, look up the various dimensions of the ubiquitous 2"x4"
over time.


I thought that was a piece of wood :-)


2 x 4's (nominal size) are actually 1.5 x 3.5 (actual size). The 2 x 4
starts out at 1.56" x 3.58" (or 1.62" x 3.68" for kiln dried after
milling), and then planed down to 1.5 x 3.5. However, for treated
(green) wood, it's slightly larger: a 2 x 4 is 2-9/16 x 3-9/16 (a 1/16"
fatter).

That's for soft woods. For hardwoods, 2" thickness (nominal) is
actually either 1-13/16 for surfaced 1 side and 1-3/4 for surfaced 2
sides.

http://www.woodbin.com/ref/lumber-dimensions/

Of course, depending on where you buy your lumber, you can have it
milled to whatever dimensions you want at their mill along with paying
more for a special order.
  #22  
Old August 27th 20, 09:02 PM posted to alt.comp.os.windows-10
Ant[_3_]
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Posts: 873
Default Why are they called 3.5 inch drives ?

DerekF wrote:
When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Derek


I still have my 3.5" floppy disk(ette)s and their drives. :P
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  #23  
Old August 28th 20, 03:09 PM posted to alt.comp.os.windows-10
Ken Blake[_7_]
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Posts: 569
Default Why are they called 3.5 inch drives ?

On 8/27/2020 1:02 PM, Ant wrote:

DerekF wrote:
When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Derek


I still have my 3.5" floppy disk(ette)s and their drives. :P



I still have a few 3.5" floppies and even fewer 5.25" floppies, but I no
longer have drives for either. Why don't I throw the floppies away? I
don't know. I probably will, one of these days.


--
Ken
  #24  
Old August 28th 20, 03:30 PM posted to alt.comp.os.windows-10
Wolffan[_3_]
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Posts: 224
Default Why are they called 3.5 inch drives ?

On 27 Aug 2020, Jenny Telia wrote
(in article ):

On 27/08/2020 00:23, DerekF wrote:
On 26/08/2020 20:51, MikeS wrote:
On 26/08/2020 18:33, DerekF wrote:
On 26/08/2020 18:13, VanguardLH wrote:
DerekF wrote:

When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.

Size is based on the diameter of the platters, not the case. Obviously
a 3.5" diameter platter cannot fit inside a 3.5" case.

https://en.wikipedia.org/wiki/List_o...e_form_factors
(found using an online search)
I thought it must be that but it must confuse many.
Derek
I doubt it. You seem to be the first. The secret is in their full name
- 3.5 inch *disk* drive.

I'll do a survey outside our local computer store tomorrow.


I suggest a survey outside your local computer museum. Who still uses
3.5" disk drives?


Err... the majority of HDDs are 3.5” form factor. There are even 3.5”
form factor SSDs.

And if you meant floppies... Uncle Sugar’s Airey Fairies still use
_eight-inch_ floppies in some of their equipment. It could be worse, it could
be Uncle Sugar’s Misguided Children. They appear to be unclear on the
entire question of what a computer is.

  #25  
Old August 28th 20, 03:34 PM posted to alt.comp.os.windows-10
Wolffan[_3_]
external usenet poster
 
Posts: 224
Default Why are they called 3.5 inch drives ?

On 28 Aug 2020, Ken Blake wrote
(in article ):

On 8/27/2020 1:02 PM, Ant wrote:

DerekF wrote:
When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Derek


I still have my 3.5" floppy disk(ette)s and their drives. :P


I still have a few 3.5" floppies and even fewer 5.25" floppies, but I no
longer have drives for either. Why don't I throw the floppies away? I
don't know. I probably will, one of these days.


I still have an unopened box of 5.25” and another of 3.5”. I no longer
have a working computer which will handle 5.25”, but my ancient beige G3
will read/write 3.5” floppies. And I still have a USB 3.5” floppy drive
which might work. USB 1.1, I think.

  #26  
Old August 28th 20, 03:47 PM posted to alt.comp.os.windows-10
Big Al[_5_]
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Posts: 1,588
Default Why are they called 3.5 inch drives ?

On 8/28/20 10:09 AM, this is what Ken Blake wrote:
On 8/27/2020 1:02 PM, Ant wrote:

DerekF wrote:
When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Derek


I still have my 3.5" floppy disk(ette)s and their drives. :P



I still have a few 3.5" floppies and even fewer 5.25" floppies, but I no longer have drives for either. Why don't I throw the floppies away?
I don't know. I probably will, one of these days.


I've got 8mm film reels. Want any?!!! LOL. Why I keep them either is a question. ALong with the dual cassette tape deck, the
reel-to-reel deck too.

Al.

  #27  
Old August 28th 20, 05:55 PM posted to alt.comp.os.windows-10
DerekF
external usenet poster
 
Posts: 10
Default Why are they called 3.5 inch drives ?

On 27/08/2020 21:02, Ant wrote:
DerekF wrote:
When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Derek


I still have my 3.5" floppy disk(ette)s and their drives. :P

So do I and I also have a 1980's desktop that I have not turned on in a
while with Win 3.5
Derek
  #28  
Old August 28th 20, 06:51 PM posted to alt.comp.os.windows-10
knuttle
external usenet poster
 
Posts: 262
Default Why are they called 3.5 inch drives ?

On 8/28/2020 10:09 AM, Ken Blake wrote:
On 8/27/2020 1:02 PM, Ant wrote:

DerekF wrote:
When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Derek


I still have my 3.5" floppy disk(ette)s and their drives. :P



I still have a few 3.5" floppies and even fewer 5.25" floppies, but I no
longer have drives for either. Why don't I throw the floppies away? I
don't know. I probably will, one of these days.


It is obvious why you don't throw the floppies away! You may need them
SOMEDAY, and the might be valuable.




I suffer from the same disease
  #29  
Old August 28th 20, 06:54 PM posted to alt.comp.os.windows-10
knuttle
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Posts: 262
Default Why are they called 3.5 inch drives ?

On 8/28/2020 12:55 PM, DerekF wrote:
On 27/08/2020 21:02, Ant wrote:
DerekF wrote:
When 3.5 inch drives measure approximately 4 inches wide, 5.8 inches
long and 0.8 inches thick, based on the dimensions of a 1 TB
desktop-class drive.
Derek


I still have my 3.5" floppy disk(ette)s and their drives. :P

So do I and I also have a 1980's desktop that I have not turned on in a
while with Win 3.5
Derek

I still have my TI-99 4a. Some day I may need it and I am sure that it
is a valuable antique
  #30  
Old August 28th 20, 06:56 PM posted to alt.comp.os.windows-10
VanguardLH[_2_]
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Posts: 10,881
Default Why are they called 3.5 inch drives ?

knuttle wrote:

Ken Blake wrote:

I still have a few 3.5" floppies and even fewer 5.25" floppies, but I
no longer have drives for either. Why don't I throw the floppies
away? I don't know. I probably will, one of these days.


It is obvious why you don't throw the floppies away! You may need them
SOMEDAY, and the might be valuable.


My aunt is a hoarder. She keeps things because "they might be usable to
somebody else" ... but they aren't usable to *HER*, so the crap keeps
piling up in her trash-cart house.
 




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