buying a compter

buying a compter

[SILVERCREEK421]

what is a GHz?
thanks

Re: buying a compter

[David C. Hoos, Sr.]

1 GHz = 1000 MHz = 1,000,000 KHz = 1,000,000,000 Hz

----- Original Message ----- 
From: "SILVERCREEK421" <silvercreek421@aol.com>
Newsgroups: comp.lang.ada
To: <comp.lang.ada@ada.eu.org>
Sent: August 09, 2002 10:22 PM
Subject: buying a compter


> what is a GHz?
> thanks
> _______________________________________________
> comp.lang.ada mailing list
> comp.lang.ada@ada.eu.org
> http://ada.eu.org/mailman/listinfo/comp.lang.ada
> 
> 

Re: buying a compter

[AG]

"David C. Hoos, Sr." <david.c.hoos.sr@ada95.com> wrote in message
news:mailman.1028984041.26687.comp.lang.ada@ada.eu.org...
> 1 GHz = 1000 MHz = 1,000,000 KHz = 1,000,000,000 Hz

Ahh, but much too often there is
a confusion - if you buy a computer
that is quoted as having 1Gb of
memory, you aren't likely to receive
exactly 1,000,000,000 bytes ;-)

Re: buying a compter

[David C. Hoos, Sr.]

----- Original Message ----- 
From: "AG" <ang@xtra.co.nz>
Newsgroups: comp.lang.ada
To: <comp.lang.ada@ada.eu.org>
Sent: August 10, 2002 3:44 PM
Subject: Re: buying a compter


> 
> "David C. Hoos, Sr." <david.c.hoos.sr@ada95.com> wrote in message
> news:mailman.1028984041.26687.comp.lang.ada@ada.eu.org...
> > 1 GHz = 1000 MHz = 1,000,000 KHz = 1,000,000,000 Hz
> 
> Ahh, but much too often there is
> a confusion - if you buy a computer
> that is quoted as having 1Gb of
> memory, you aren't likely to receive
> exactly 1,000,000,000 bytes ;-)
There may be confusion about the meaning og Giga-, Mega-, and Kilo-
when it comes to memory space, just because 1024 is a handy integer
power of 2 -- but there is no such confusion when it comes to _frequency_,
which is what the original poster was talking about.
> 
> 
> _______________________________________________
> comp.lang.ada mailing list
> comp.lang.ada@ada.eu.org
> http://ada.eu.org/mailman/listinfo/comp.lang.ada
> 
> 

Re: buying a compter

[Adrian Knoth]

AG <ang@xtra.co.nz> wrote:

>> 1 GHz = 1000 MHz = 1,000,000 KHz = 1,000,000,000 Hz
> Ahh, but much too often there is a confusion - if you buy a computer
> that is quoted as having 1Gb of memory, you aren't likely to receive
> exactly 1,000,000,000 bytes ;-)

Well, you'll at least get 1,000,000,000*8 bits. The problem was that
IT handled prefixes as powers of 2. So the kb were 1024*8 bits,
the MB were 2^20*8 bits and so on.

That is why you've ment 1Gb=2^30*8 bits. AFAIK they changed the
international convention from KB,MB,GB... to KiB, MiB, GiB so that now
the old k/M/G are exactly in SI-style (1000/1000000/1000000000) and
Ki/Mi/Gi stand for the IT-version (powers of 2: 1024/2^20/2^30).
 

-- 
mail: adi@thur.de  	http://adi.thur.de	PGP: v2-key via keyserver

Reset-Knopf? Ich habe kein Windows!

Re: buying a compter

[AG]

"Adrian Knoth" <adi@drcomp.erfurt.thur.de> wrote in message
news:slrnalchuo.9es.adi@drcomp.erfurt.thur.de...
> AG <ang@xtra.co.nz> wrote:
>
> >> 1 GHz = 1000 MHz = 1,000,000 KHz = 1,000,000,000 Hz
> > Ahh, but much too often there is a confusion - if you buy a computer
> > that is quoted as having 1Gb of memory, you aren't likely to receive
> > exactly 1,000,000,000 bytes ;-)
>
> Well, you'll at least get 1,000,000,000*8 bits. The problem was that
> IT handled prefixes as powers of 2. So the kb were 1024*8 bits,
> the MB were 2^20*8 bits and so on.
>
> That is why you've ment 1Gb=2^30*8 bits. AFAIK they changed the
> international convention from KB,MB,GB... to KiB, MiB, GiB so that now
> the old k/M/G are exactly in SI-style (1000/1000000/1000000000) and
> Ki/Mi/Gi stand for the IT-version (powers of 2: 1024/2^20/2^30).

Sorry to answer to this one specific mail out of a rather
large number that I received on the subject (it just
happened to be the last I saw).

Believe me, I do know the difference between 2 and 10
based definitions of of Kilo, Mega, Giga, Tera and so on.
It was just meant to show why the question has arised in
the first place. I wonder why not one of the respondents
noticed the smiley at the end of what I wrote?