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- CPUs early 60’s ~ 50 years ago IBM Stretch 1.2MIPS, $8M vs an iPhone:
- The smartphone is much smaller, i.e. it fits in the hand versus 2500 sq. feet;
- The smartphone weighs 5 oz. versus 40,000lbs;
- The smartphone uses 10,000 times less power;
- The smartphone is a thousand times faster at 1/100,000th of the cost.
- WANs 1960s 75bps modems, now 10-100Gbps, i.e. billion times faster (see http://www.ziplink.net/users/lroberts/IEEEGrowthTrends/IEEEComputer12-99.htm)
- voice long ago overtaken by data,
- trunk speeds roughly double every 22months (driven by Moore's law)
- Dense Wave Division Multiplexing (DWDM) caused breaking point in 1998 then double every 6 months
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