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View Full Version : something to note, 768000bits is not 768Kilobits.


Sparkytus
03-08-2007, 19:17
I've noticed that VirginMedia simply multiply by 1000 when they do the calculation of their rates, instead of the true computer Kilo figure of 1024.

:dozey: o O (Oh the shock, the horror of it!)

For example 768000bits is not 768Kilobits but is actually 750Kilobits (93.75KiloBytes), 768Kilobits is really 786432bits (96KiloBytes).

:dozey: o O (2.25KiloBytes/sec difference, hmm, not much, then again it's upload speed.)

Here's my current connection setup... 20Megabit

:dozey: o O (What a show off.)

DownStream - 20480000bits/sec = 20000Kilobits/sec = 2500KiloBytes/sec
Upstream - 768000bits/sec = 750Kilobits/sec = 93.75KiloBytes/sec

:dozey: [Drooling]

If I had a true 20Megabit down rate & a 768Kilobit up rate it would look like this...

DownStream - 20971520bits/sec = 20480Kilobits/sec = 2560KiloBytes/sec
UpStream - 786432bits/sec = 768Kilobits/sec = 96KiloBytes/sec

Just thought I'd point it out, you'll notice it with any connection speed's 'Operation Configuration'.

:dozey: o O (Interesting?)

Some folk may be interested to know that to download at the full rate on a 20Megabit connection your computer has to send out packet receipts totalling about 80KiloBytes/sec.
Leaving only 13.75KiloBytes/sec for anything else you want to do.

:dozey: o O (Like for my torrent max upload rate you mean. LOL)

Ciao for now.

foddy
03-08-2007, 19:19
I've noticed that VirginMedia simply multiply by 1000 when they do the calculation of their rates, instead of the true computer Kilo figure of 1024.


Actually, when talking about bandwidth, kilo always means 1000.

zing_deleted
03-08-2007, 19:20
I've noticed that VirginMedia simply multiply by 1000 when they do the calculation of their rates, instead of the true computer Kilo figure of 1024.

:dozey: o O (Oh the shock, the horror of it!)

For example 768000bits is not 768Kilobits but is actually 750Kilobits (93.75KiloBytes), 768Kilobits is really 786432bits (96KiloBytes).

:dozey: o O (2.25KiloBytes/sec difference, hmm, not much, then again it's upload speed.)

Here's my current connection setup... 20Megabit

:dozey: o O (What a show off.)

DownStream - 20480000bits/sec = 20000Kilobits/sec = 2500KiloBytes/sec
Upstream - 768000bits/sec = 750Kilobits/sec = 93.75KiloBytes/sec

:dozey: [Drooling]

If I had a true 20Megabit down rate & a 768Kilobit up rate it would look like this...

DownStream - 20971520bits/sec = 20480Kilobits/sec = 2560KiloBytes/sec
UpStream - 786432bits/sec = 768Kilobits/sec = 96KiloBytes/sec

Just thought I'd point it out, you'll notice it with any connection speed's 'Operation Configuration'.

:dozey: o O (Interesting?)

Some folk may be interested to know that to download at the full rate on a 20Megabit connection your computer has to send out packet receipts totalling about 80KiloBytes/sec.
Leaving only 13.75KiloBytes/sec for anything else you want to do.

:dozey: o O (Like for my torrent max upload rate you mean. LOL)

Ciao for now.



We do know what incognito means and with the current climate saying your someone hiding for some reason will not equate to a long stay

Sparkytus
03-08-2007, 19:34
@Foddy - Yeah but when you add 'bits' on to it then it's a computer 'kilo', and everyone talks about kilobits when referring to speeds.

@Zinglebarb - I joined last year and at the time all I could think of was incognito, I'm a quiet man and only post when I see a need to. True I haven't been on (posting) for a long time but I do check in from time to time. Hooked on too many forums probably, there's so many. LOL

Edit: I changed it to my fave drink. LOL

2nd Edit: What current climate? In the forum?

Hom3r
03-08-2007, 20:23
2nd Edit: What current climate? In the forum?

Recovering from the hacker.

foddy
04-08-2007, 00:11
@Foddy - Yeah but when you add 'bits' on to it then it's a computer 'kilo', and everyone talks about kilobits when referring to speeds.
No. Bandwidth is always measured in proper powers of 10. If you were discussing data transferred (bytes per day) then it'd be acceptable, but bits per second are never measured that way.[/quote]

As it happens, we get 20.48Mbps - which is more than advertised! Nice one.

While it's a wiki, and therefore not something I'd necessarily trust, you might like to have a look at http://en.wikipedia.org/wiki/Kilobit/s (although don't believe everything you read there!)

dev
04-08-2007, 00:54
technically, kilo/mega/giga/tera = powers of 10, kibi/mebi/gibi/tebi = powers of 2

nffc
04-08-2007, 02:45
What a totally disgusting, hideous font.