meal, repast(noun) the food served and eaten at one time. meal(noun) any of the occasions for eating food that occur by custom or habit at more or less fixed times. meal(noun) coarsely ground foodstuff; especially seeds of various cereal grasses or pulse.
An encoder is a sensor of mechanical motion that generates digital signals in response to motion. As an electro-mechanical device, an encoder is able to provide motion control system users with information concerning position, velocity and direction. There are two different types of encoders: linear and rotary.
An indexer, in the context of C#, is a class member used to provide array-like indexing capabilities for easy object property access. An indexer is mostly used when an array is encapsulated within a type. An indexer's simple syntax helps client applications access element groups as an array object member (type, class, or struct). An indexer provides an indirect method of inserting boundary checking logic.