A 3-to-8 line priority encoder is a logic component which accepts eight request inputs and produces a 3-bit number identifying the highest priority input request using fixed priority. A 3-to-8 line decoder accepts a 3-bit number and activates one of its eight outputs, as identified by the input number. Show how these components could be used to implement parallel arbitration. Derive the Boolean expressions for each component and show that these equations correspond to the parallel arbitration expressions given in the text.