General Discussion
  >> Broadband Quality Monitor


Register (or login) on our website and you will not see this ad.


  Print Thread
Standard User rieverjohn
(newbie) Sun 12-Jul-20 22:15:36
Print Post

MB and Mb


[link to this post]
 
Thanks J0hn83 and MHC, I wasn't aware of those conventions
Standard User RobertoS
(elder) Sun 12-Jul-20 23:31:46
Print Post

Re: MB and Mb


[re: rieverjohn] [link to this post]
 
There is also another confusing issue. A megabyte on a a storage medium is more bits than a megabyte of transmitted data!

In normal usage these days, (there are historical non-intel/Msdos/Windows/Apple byte and word sizes), file storage bit multiples are stated in powers of 2. So bit-counts of 4; 8(=Byte); 16; 32; 64; 128; 256; 512; 1024(=kByte); 2048; 4096; 8192 and so on up to 1024kB = 1MB. But data transmission speeds are measured in powers of 10. 10b(its)ps; 100bps; 1,000bps=1kbps, and upwards to 1000,000kbps - 1Mbps.

To add to the mess, the use of "k" seems to be applied in both structures, but "M" in both. The reason for the latter being that "m" generally means milli (one thousandth), rather than Mega (one million).

To try to make things easier, the kibibit was introduced. Have fun with that one! Though I found it useful as a setting in the tbb BQM when I wanted to see what is said when downloading files. (I've just noticed in that link that it says a kibibit and its multiples have "Ki" not "k").

__________________________________________________________
Sovereignty Means Sovereignty

My broadband basic info/help site - www.robertos.me.uk. Domains, sites and mail hosting - Tsohost & Ionos.
Connection - Three B311 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up. 1+ 8 Pro max 80Mbps down, 24Mbps up.
=========================
To argue with a mindless bigot is foolish.
  Print Thread

Jump to