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.
1) In communications engineering, the term codec is used in reference to integrated circuits, or chip s that perform data conversion. In this context, the term is an acronym for  co der/ dec oder.. This type of codec combines analog-to-digital conversion and digital-to-analog conversion functions in a single chip.