Colors can be measured and quantified in various ways; indeed, a person's perception of colors is a subjective process whereby the brain responds to the stimuli that are produced when incoming light reacts with the several types of cone cells in the eye.
unit of service. unit of service. any individual, family, aggregate, organization, or community given nursing care. The level at which service is delivered varies with the particular unit entity.
A service set is the set of all the devices associated with a particular Wi-Fi network. The service set can be local, independent, extended or mesh. Each service set has an associated identifier, the 32-byte Service Set Identifier (SSID), which identifies the particular network.