Resolution - Smallest increment for a  machine or process variable that can be realized by a manufacturing or metrology system.

• Nominal Resolution - the smallest user selectable or least significant machine reported increment.
• Actual Resolution - the smallest increment that the machine is physically capable of realizing. For example, a machine may be capable of being programmed in one micrometer displacement increments but have encoders that can only differentiate 2.5 micrometers and thus the machine will only actually produce displacements in 2.5 micrometer multiples.
• Scale Resolution -  1. See display resolution. 2. The minimum resolvable displacement achievable with the scale of an encoder; 3. The smallest marked graduation of an analog meter on an instrument.
• Display Resolution - Resolution of a visual numerical display.
• Compare  accuracy, precision.