A programmable resistor includes a variety of taps. A fingerprint is constructed from the data, wherein the fingerprint comprises, for each of a plurality of predetermined character encoding schemes, at least one confidence value, representing a confidence that the data was encoded using said character encoding scheme. The task operations may be associated with an energy consumption that exceeds an energy consumption associated with the low-power wireless communications, allowing the proximal devices that suspend task operations to reduce their overall energy consumption. The invention is also directed to an olefin product composition that is produced by contacting the C4 fraction with an oligomerization catalyst.