## Invitation to Computer Science 8th Edition

$$Yes$$ --- Assuming that the boundaries of the channel numbers are known, yes the operation is unambiguous an well defined. There are two parts in the operation, entering the channel number AND pressing the button CHAN. since both of the parts are unambiguous, the operation is unambiguous.
$$Yes$$ --- Assuming that the boundaries of the channel numbers are known, yes the operation is unambiguous an well defined. There are two parts in the operation, entering the channel number AND pressing the button CHAN. since both of the parts are unambiguous, the operation is unambiguous.