I wondered this too, so went digging. the most concise and, to me, most credible answer was the following (Credit to K. Adam's at Geek.com)
Serial Faster than Parallel... (5:41pm EST Wed Jul 25 2001)
The problem with parallel (ribbon) data transfer cables is the crosstalk that occurs between adjacent conductors at very high clock/transfer speeds.
IBM developed a work-around for ATA-66 and ATA-100 by using an 80-conductor cable with a 40-pin interface, by stringing a "ground" conductor between each "signal" conductor.
Capacitance issues, "standing waves," and impedance (electrical resistance as relates to rapidly-changing voltages) matching problems become more evident in parallel (ribbon) cables as you crank up the clock/transfer speeds, also.
It's a lot easier to match the impedance of a few conductors in a serial cable to its interface, than trying to match impedance for 40 conductors.
Parallel schemes actually have a lot less "processing" overhead than serial schemes, but you're ultimately limited by physics a lot more quickly than with serial... - by K. Adams
Kacd.
Re:Ronnie Scelson's Info, Courtesy of ROKSO
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I, Spammer
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My bad, I mistakenly thought the parent was listing the whois record rather than Spamhaus's details direct.
Point noted.
KACD
Re:Ronnie Scelson's Info, Courtesy of ROKSO
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I, Spammer
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· Score: 1
Not such a good idea, many underhanded spammers use false information in their Whois records, sometimes using details of somebody they would just *love* to get abuse meant for themselves, such as vocal anti-spam supporters etc.
Kind of an ironic point given your.sig:)
KACD
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My bad, I mistakenly thought the parent was listing the whois record rather than Spamhaus's details direct. Point noted. KACD
Not such a good idea, many underhanded spammers use false information in their Whois records, sometimes using details of somebody they would just *love* to get abuse meant for themselves, such as vocal anti-spam supporters etc. Kind of an ironic point given your .sig :)
KACD