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| ISP Information: A unique 128-bit address of a network card or device. The first part of the address is unique to the company that produced the device, and beyond that it is a sequence of digits unique to a single device manufactured by a company. ISP Glossary: MAC Address - Well, my response was based on the comment that the Bell System didn't care much for SxS. I'm suggesting that perhaps the more tougher networking needs of bigger or major cities resulted in their getting more attention. Those cities generated more revenue and had more traffic to justify that attention. I dare say that a east coast small city might have more telephone traffic than a mid west or southwest city of the same population. This is because the east was more interconnected and had more national commerce that went by phone than smaller towns which were likely more insular back then. In other words, a small bank in Philadelphia probably had more long distance traffic and sophistication than a bank of the same size in say a city like Houston.Under Bell System management it wasn't that the smaller cities weremore interconnected to begin with (They probably were - especially NewEngland) but that wasn't the prime motivator for things likeProvidence having a Panel swtich, or RI being an all digital state waybefore the rest of the country.Instead it all has to do with profitability. Those Bell OperatingCompanies that consistently showed profit got the best of thebest. It's why New York city had some of the worst telecom gear in the60's through the early 80's. They simply weren't profitable.I believe the term is diseconomies of scale. |