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O

Octal

Octal (base 8) is a numbering system that uses eight as the base.

Ohm

This is the SI unit of electrical resistance when transmitting a current of one ampere at a between points that have a potential difference of one volt.

Oscillation

The regular variation in magnitude or position about a central point, especially of an electric current or voltage.

Output

Output may have multiple meanings depending on the context it is used in:

  1. A physical socket used for the output of a signal or power level from a device.
  2. Information which is given out from a device.
  3. An output, in DCC is a physical wire that is usually found on and controlled by, the decoder.

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