Dan Bishop schreef:
Nick Craig-Wood wrote:
Peter Hansen <[EMAIL PROTECTED]> wrote:
Only for hard drive manufacturers, perhaps.
For the rest of the computer world, unless I've missed
a changing of the guard or something, "kilo" is 1024
and "mega" is 1024*1024 and so forth...
Yes. Unless you work in the telcoms industry, where, for example if
you order a 2 Mbit/s line you'll get
2 * 1024 * 1000 bits / s
They must have gotten the idea from floppy disks, which also use a
1024000-byte "megabyte".
Not really. It is actually related to the bandwidth of individual
telephony speech connections. These channels have a bandwith
of 64 kb/sec, where the k-prefix is used in the proper (SI) way.
So this bandwidth really is exactly 64,000 bits/sec
(8,000 samples/sec, each sample having 8 bits).
The M in a 2Mb/s connection is neither an SI prefix,
noris it identical to Mi. It's just sloppy language.
A 2 Mb/s connection is just a bundling of 32 such 64 kb/s channels,
resulting in a bandwidth of 32*64,000 = 2,048,000 bits/sec.
Cheers,
Ruud
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