> -----Original Message----- > From: iMac List [mailto:[EMAIL PROTECTED] Behalf Of chris > Sent: Friday, July 25, 2003 1:21 PM > To: iMac List > Subject: Re: cable modem > > > >> 1.3mbits = 166.5K/sec or so. > >why do they go to the trouble to say 1.3 mbits? what's the confusion in > >terminology that makes these equivalent? 1,300,00=166,500 is really new > >math. > > Actually its not new math, you just need to know what the terms represent. > > 1.3 Mbits is 1.3 mega bits. There are 8 bits to a byte and 1024 = a > "mega" (not 1000 like in metrics). > > 166.5K/sec refers to 166.5 Kilo Bytes per second, not bits like the 1.3 > Mb looked at. > > So to translate them, you take 1.3 x 1024 = 1331.2 (1.3 mega bits times > 1024 kilo bits in a mega bit equals 1331.2 kilo bits) > > Now take the 1331.2 / 8 = 166.4 (1331.2 kilo bits divide by 8 bits per > byte equals 166.3 kilo bytes) > > So 1.3 mega bits per second of bandwidth speed equals 166.4 kilo bytes > per second of data transfer. > > -chris > <http://www.mythtech.net> > However in real life it is more like 10 bits/byte when you take into account the overhead such as: error correction, handshaking, flow control etc. Ben.
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