Largest Unit

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Largest Unit

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Dave F-425609

Posted Friday, April 04, 2008 4:52 AM

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I agree with all the other protestors.

1000^8=1024^8

Sorry, that dog won't hunt.

Secondly, where is the unit of measure? What is this a measure of, baby's breath and ether?

Thirdly, the "describing the whole universe". How many atoms are there in the universe? And the can be of how many different varieties? Made up of how many types of Muons?

I seem to recall an article on this site stating that someone was being sued for selling a terabyte drive that was only 1000GB. This question would seem to be of the manufacturer's ilk.

Post #479815

TraderSam

Posted Friday, April 04, 2008 6:10 AM

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Geeeshhh...stop whining already...

This was a fun question that made you think and do some research.

Don't make more out of it than that. If missing the question ruined your day, you shouldn't play this game.

Here is a another reference...
http://en.wikipedia.org/wiki/Yottabyte

Here is a reference to understand why the numbers are considered equivalent...has to do with context.
http://en.wikipedia.org/wiki/Kilobyte

Oh, and I missed it too...but I learned something.

Relax...enjoy life! Its Friday!

If it was easy, everybody would be doing it!;)

Post #479874

Anthony K. Valley

Posted Friday, April 04, 2008 6:27 AM

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Hmmm.... I assumed the question was specifically about pages, extents, and allocations in SQL Server. I had no idea that it was about general computer storage. Missed it, not a big deal.

Post #479892

Jack Corbett

Posted Friday, April 04, 2008 7:00 AM

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Anthony K. Valley (4/4/2008)

Hmmm.... I assumed the question was specifically about pages, extents, and allocations in SQL Server. I had no idea that it was about general computer storage. Missed it, not a big deal.

I thought the same. I also, as someone else posted, did not notice that it was one with multiple answers. If I had I still would have gotten it wrong as I actually used calculator to find out what each expression was and found that there were 2 final answers, so I would have chosen 2. I definitely think that the QOD should have some context though.

Jack Corbett

Applications Developer

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Post #479921

BarbW

Posted Friday, April 04, 2008 7:36 AM

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This question baffled me for the same reasons already mentioned.
10^24 <> 1 024^8
This is the second time this week the "poorly worded" QOD caused numerous comical replies. Maybe I will start waiting until tomorrow to answer today's question! QOT - In the end, I certainly enjoy the comments while learning more about the topics. Thanks all :D

Post #479970

Shaun McGuile

Posted Friday, April 04, 2008 7:39 AM

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Education is the goal, entertainment is the medium :D

--Shaun

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Post #479971

Aleksandr Furman

Posted Friday, April 04, 2008 7:57 AM

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That reminds me of an old joke:
What’s the difference between mechanical engineer and computer geek?
Mechanical engineer thinks Kilobyte is 1000 bytes.
And computer geek thinks kilometer is 1024 meters. :D

Post #479984

magarity kerns

Posted Friday, April 04, 2008 8:29 AM

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More than 1 YB is needed, it seems to me. Since the information being stored is within the universe it is storing there must be a mechanism to denote that there are now 2 copies, the original and this stored one. So yet even more storage is needed.

Post #480016

Shaun McGuile

Posted Friday, April 04, 2008 8:32 AM

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Aleksandr Furman:

How is that funny?

Is that not the truth? ;)

Like the one told to me by an accountant;

"There are three types of accountant in this world, those who can count and those who can't" :D

--Shaun

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Post #480019

Derek Dongray

Posted Friday, April 04, 2008 8:34 AM

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Another poorly thoguht out and wrong question.

As mentioned, 1000^8 <> 1024^8. 1Yb (Yottabyte) is not the same a 1Yib (Yobibyte, see http://en.wikipedia.org/wiki/Kibibyte). In fact, even the article referenced http://en.linuxreviews.org/Yottabyte points out that the binary value is bigger!

So only 2 answers were correct, not four.

The second error, taken from the article, is the claim that a "Yottabyte can, in theory, store everything in the entire universe." The latest estmates put the number of particles in the universe at somewhere between 10^72 and 10^87' http://www.strangehorizons.com/2001/20010402/biggest_numbers.shtml, which is a lot bigger than 1000^8 (10^24). If you add that, for a model of the entire universe (which is what I interpret by "store everything in the entire universe") you also need positions and velocities (and other properties) at some specified precision, so allowing a kilobyte for each particle takes the upper value to 10^90.

So now we start getting near to a really big unit of storage ...

1 Googolbyte = 10^100 bytes! :)

Since the Si system was only extended in 1991 to include the Yotta- prefix, I'm sure it will be extended again once someone finds a need!

P.S. of course, the largest named number is the Googolplex = 10^(10^100), i.e. 1 followed by 1 Googol (10^100) zeros, but "Googolplexbyte" is a ridiculous unit of storage. :P

And anyway why would anyone ever need more than 640Kb<<<<<1Yb?:)

Derek

Post #480022

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