Digital Communications

DIGITAL COMMUNICATIONSI INTRODUCTION TO DIGITAL COMMUNICATIONS 2. A. An operating system is being developed for use in the control unit of an industrial machine. For efficiency, it is decided that any command to the machine will be represented by a combination of four characters, and that only eight distinct characters will be supported. What is the minimum number of bits required to represent one command? a) 5 b) 7 c) 12 d) 16 B. What operation is typically represented by the following program flowchart symbol? a) input output b) processing c) storage d) branching