What started as somewhat clunky keypads that required vehicle operators to punch in five digit codes to get a vehicle to start, a code given to them when their car payment was made, has moved to more sophisticated remote technology.

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It may not be until more objects around us are actually "smarter, " when the Internet becomes more about things in our environment rather than caches of information that we access through special devices, that we may start to solve some of the problems QR codes are failing to address.

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In the hubs of technology and commerce, like San Francisco and New York, growth is hampered by expensive rents, living expenses, and start-up costs, often stemming from restrictive building codes and outdated zoning laws.

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Mr Obasanjo must start to refashion not just the institutions of the state but the codes of practice and patterns of behaviour among the people at large that make civilised life possible.

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But knowing my detection circuitry I was able to come up with special codes that were not data but caused the reader to synchronize on the start of a byte.

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