Computer System

pleases answer as much as you can from 14.5 to 16.7

Homework Number 7 14.5 In recent years, much of the storage and communication of data has been in digital form, even if the source data is actually analog. Even most television is now transmitted digitally. What benefits and advantages are gained by using digital storage and signaling? 15.3 Concurrency, of course, is a requirement for modern operating systems. What are the major challenges that an OS designer faces in supporting efficient concurrency that she would not face if the operating system could just run one program at a time? 15.8 What is the difference between the logical description of a file and the physical description? 16.6 Explain piping. What additional capability does piping add to a command language? 16.7 Explain the concept of redirection. Illustrate your answer with an example of a situation where redirection would be useful