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Windows 7: Hard Drive - why is 2 TB only 1.8 TB ??

26 Dec 2010   #71
derekimo

Microsoft Community Contributor Award Recipient

Win 10 Pro x64
 
 

Quote   Quote: Originally Posted by James Colbert View Post
Quote   Quote: Originally Posted by derekimo View Post

Excellent explanation Wolfgang!

Case closed, let the horse rest in peace.
Hi Derek. Understanding of the 'math' involved notwithstanding, unfortunately, the 'case' will continue (as will the threads) as long as the average user doesn't understand where his "missing GBs" went. Not an argument, but a statement of reality.

James
I understand, but it is what it is. Wishful thinking I guess.


My System SpecsSystem Spec
.
26 Dec 2010   #72
James Colbert

 
 

Quote   Quote: Originally Posted by derekimo View Post
Quote   Quote: Originally Posted by James Colbert View Post
Quote   Quote: Originally Posted by derekimo View Post

Excellent explanation Wolfgang!

Case closed, let the horse rest in peace.
Hi Derek. Understanding of the 'math' involved notwithstanding, unfortunately, the 'case' will continue (as will the threads) as long as the average user doesn't understand where his "missing GBs" went. Not an argument, but a statement of reality.

James
I understand, but it is what it is. Wishful thinking I guess.

Appreciated all the opinions and info put forth in this thread, and wish happy holidays to all!

James
My System SpecsSystem Spec
26 Dec 2010   #73
derekimo

Microsoft Community Contributor Award Recipient

Win 10 Pro x64
 
 

Quote   Quote: Originally Posted by James Colbert View Post
Quote   Quote: Originally Posted by derekimo View Post
Quote   Quote: Originally Posted by James Colbert View Post

Hi Derek. Understanding of the 'math' involved notwithstanding, unfortunately, the 'case' will continue (as will the threads) as long as the average user doesn't understand where his "missing GBs" went. Not an argument, but a statement of reality.

James
I understand, but it is what it is. Wishful thinking I guess.

Appreciated all the opinions and info put forth in this thread, and wish happy holidays to all!

James
And to you as well James!
My System SpecsSystem Spec
.

27 Dec 2010   #74
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
...The measuring method is used because it is thought to be effective---a certain unknown percentage of rubes would shy away from a drive advertised at 465 GB and buy the adjacent drive measured at 500 GB, even though they have the same usable capacity...
I agree with your entire post - with one exception:

I would bet that the marketers know exactly what percentage of rubes would do that.
Quote   Quote: Originally Posted by Buddahfan View Post
...I have never understood why people use "weather" thermometers.

If you feel too cold you put on more clothes and/or turn up the heat to get comfortable.

If you feel too hot you wear less clothes and/or turn the temperature down on your air conditioner to get comfortable.

Knowing what the temperature says on a "weather" thermometer does not change your atmospheric comfort level.
Yeah, but it's easier to know such things before you take your dogs out for a whiz, then have to drag them back in to add/remove clothes.
My System SpecsSystem Spec
27 Dec 2010   #75
omnimodis78

Windows 7 Professional x64
 
 

Clearly there are two camps here! The one is explaining how mathematically it all makes sense, and the other is saying that when we buy a drive that shows "2TB", it should show up as a 2TB drive in the computer also. Frankly, I choose to side with the 2nd camp because when I buy a 2L carton of milk, I'm getting 2L of milk, when I buy a pair of shoes, I'm getting a complete pair of shoes. When I pay to see a movie, I'm not asked 90% into the movie to get up and leave...so why are we sold a drive that claims a 2TB capacity and then see...let me check...yup...1.81TB. Yes, we all get it, the drive actually has 2,000,396,742,656 bytes, and that's fine - but the box didn't specify that, it specified 2TB - so, I would expect there to be enough bytes to result in a full 2TB capacity. It's just a matter of perception, but 2TB does not mathematically equal to 1.81TB - and that's the point.
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27 Dec 2010   #76
derekimo

Microsoft Community Contributor Award Recipient

Win 10 Pro x64
 
 

Quote   Quote: Originally Posted by omnimodis78 View Post
Clearly there are two camps here! The one is explaining how mathematically it all makes sense, and the other is saying that when we buy a drive that shows "2TB", it should show up as a 2TB drive in the computer also. Frankly, I choose to side with the 2nd camp because when I buy a 2L carton of milk, I'm getting 2L of milk, when I buy a pair of shoes, I'm getting a complete pair of shoes. When I pay to see a movie, I'm not asked 90% into the movie to get up and leave...so why are we sold a drive that claims a 2TB capacity and then see...let me check...yup...1.81TB. Yes, we all get it, the drive actually has 2,000,396,742,656 bytes, and that's fine - but the box didn't specify that, it specified 2TB - so, I would expect there to be enough bytes to result in a full 2TB capacity. It's just a matter of perception, but 2TB does not mathematically equal to 1.81TB - and that's the point.
Understood, but nobody here can actually change the way it's done.
My System SpecsSystem Spec
27 Dec 2010   #77
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Quote   Quote: Originally Posted by omnimodis78 View Post
Clearly there are two camps here! The one is explaining how mathematically it all makes sense, and the other is saying that when we buy a drive that shows "2TB", it should show up as a 2TB drive in the computer also. Frankly, I choose to side with the 2nd camp because when I buy a 2L carton of milk, I'm getting 2L of milk, when I buy a pair of shoes, I'm getting a complete pair of shoes. When I pay to see a movie, I'm not asked 90% into the movie to get up and leave...so why are we sold a drive that claims a 2TB capacity and then see...let me check...yup...1.81TB. Yes, we all get it, the drive actually has 2,000,396,742,656 bytes, and that's fine - but the box didn't specify that, it specified 2TB - so, I would expect there to be enough bytes to result in a full 2TB capacity. It's just a matter of perception, but 2TB does not mathematically equal to 1.81TB - and that's the point.
If you want it to show as 2TB, you have to teach the PC how to run in decimal - or use an IBM 7070 (from the 60's). That was a decimal computer.
My System SpecsSystem Spec
28 Dec 2010   #78
Julio Cortez

Windows 10 1703
 
 

Quote   Quote: Originally Posted by omnimodis78 View Post
Yes, we all get it, the drive actually has 2,000,396,742,656 bytes, and that's fine - but the box didn't specify that, it specified 2TB - so, I would expect there to be enough bytes to result in a full 2TB capacity.
It holds MORE than 2TB actually (2,000,396,742,656 > 2,000,000,000,000 which is 2TB).
Quote   Quote: Originally Posted by omnimodis78 View Post
It's just a matter of perception, but 2TB does not mathematically equal to 1.81TB
Of course not. What if I told you that 1 MPH = 1 Km/h? You would consider me a fool, wouldn't you?
The same way, 1 TB != 1 TiB. They do look and size similar (even if they're completely different each other), but that i of difference is there for a reason. The correct equation is 2 TB = 1.8 TiB, in this case.

Then, if the OS still shows disk capacity in GiBs but labels them as GBs, I agree it adds to the confusion.
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28 Dec 2010   #79
BrightBlessings

Win7 Pro-64 Bit
 
 

Hard Drive - why is 2 TB only 1.8 TB ??-beatdeadhorse.gif


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28 Dec 2010   #80
LoWang

Windows vista home premium and Windows 7RC1
 
 

Quote   Quote: Originally Posted by omnimodis78 View Post
Clearly there are two camps here! The one is explaining how mathematically it all makes sense, and the other is saying that when we buy a drive that shows "2TB", it should show up as a 2TB drive in the computer also. Frankly, I choose to side with the 2nd camp because when I buy a 2L carton of milk, I'm getting 2L of milk, when I buy a pair of shoes, I'm getting a complete pair of shoes. When I pay to see a movie, I'm not asked 90% into the movie to get up and leave...so why are we sold a drive that claims a 2TB capacity and then see...let me check...yup...1.81TB. Yes, we all get it, the drive actually has 2,000,396,742,656 bytes, and that's fine - but the box didn't specify that, it specified 2TB - so, I would expect there to be enough bytes to result in a full 2TB capacity. It's just a matter of perception, but 2TB does not mathematically equal to 1.81TB - and that's the point.
I agree with you 90%. You are wrong with the last sentence and you obviously did not read my previous post here ;-) It is true that somebody someday invented GiB and MiB units but all the programmers of the world ignore this and use GB and MB in software instead thus confusing everybody who buy a floppy disk, hard disk or a DVD. HDD manufacturers are technically right with their labels but they are horribly wrong in real world usage of these units
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 Hard Drive - why is 2 TB only 1.8 TB ??




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