# Largest Unit

• Education is the goal, entertainment is the medium π

--Shaun

Hiding under a desk from SSIS Implemenation Work :crazy:

• That reminds me of an old joke:

Whatβs the difference between mechanical engineer and computer geek?

Mechanical engineer thinks Kilobyte is 1000 bytes.

And computer geek thinks kilometer is 1024 meters. π

• 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.

• Aleksandr Furman:

How is that funny?

Is that not the truth? π

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" π

--Shaun

Hiding under a desk from SSIS Implemenation Work :crazy:

• 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! π

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. π

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

Derek

• Derek Dongray (4/4/2008)

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!

...you mean like store Bill Gates bank account total, or something like that. π

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

• Easy there. I let this one go, knowing it didn't really store everything, but that it would be a bit fun and I'd never heard of a YB. Heck, I can only barely conceive of a TB since I can see that much storage and can guess what a PB is, but no real grasp of an EB.

Again, as pointed out, this is partially entertainment, and partially to get you to think or learn something new. It's not necessarily supposed to be a factual quiz of everything in BOL. Not all questions will always have to do with SQL Server, though we try to get them in the general area.

If you think it's easy to write un-"poorly worded" questions, please submit your own. Not as easy as you might think without putting in trivial ones.

I have awarded back points, and changed the answer to only show 2 as correct.

• I clicked the correct answer and it still told me I was wrong. The stats are a little messed up as well.

"Beliefs" get in the way of learning.

• Steve:

Definition of EB -

EB - Europa Barbarorum - excellent historically accurate mod for SEGA/The Creative Assembly's most awsome game Rome Total War. π

Hiding under a desk from SSIS Implemenation Work :crazy:

• Steve Jones - Editor (4/4/2008)

Easy there. I let this one go, knowing it didn't really store everything, but that it would be a bit fun and I'd never heard of a YB. Heck, I can only barely conceive of a TB since I can see that much storage and can guess what a PB is, but no real grasp of an EB.

EB (Exabyte) is easy. It's a tape's worth of storage, as in "we're going to have problems when the nightly backup exceeds an Exabyte"! π

(For those who miss the joke... Exabyte Corporation make tape drives...)

Derek

• Shaun McGuile (4/4/2008)

Aleksandr Furman:

How is that funny?

Is that not the truth? π

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" π

--Shaun

Come now, everyone knows there are 10 types of people in the world: those who count in binary and those who don't.

Puto me cogitare, ergo puto me esse.
I think that I think, therefore I think that I am.

• srienstr (4/4/2008)

Shaun McGuile (4/4/2008)

Aleksandr Furman:

How is that funny?

Is that not the truth? π

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" π

--Shaun

Come now, everyone knows there are 10 types of people in the world: those who count in binary and those who don't.

No, there is only one type of person in the world: those who count.

Derek

• Derek Dongray (4/4/2008)

No, there is only one type of person in the world: those who count.

Except of course for Democrat primary voters in MI and FL. :hehe:

Puto me cogitare, ergo puto me esse.
I think that I think, therefore I think that I am.

• Wikipedia (http://en.wikipedia.org/wiki/Yottabyte) would have you believe that all four answers are correct, using base 2 or 10.

The quoted reference in the answer (http://en.linuxreviews.org/Yottabyte) would have you believe that only two answers are correct, using base 10.

Which are we to believe? :hehe:

• craigpessano (4/4/2008)

Wikipedia (http://en.wikipedia.org/wiki/Yottabyte) would have you believe that all four answers are correct, using base 2 or 10.

The quoted reference in the answer (http://en.linuxreviews.org/Yottabyte) would have you believe that only two answers are correct, using base 10.

Which are we to believe? :hehe:

That is easy! Linux, in a SQL Server discussion group, is heresy! π

Therefore, Wikipedia, for all its faults, is the better source!

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