Consider a computer running an mp3 player, an X-window system, a terminal with bash running desk top, a clock, and a word-processor. The mp3-player have several things going on, playing music, updating a graphic mixer chart and showing rolling text with title information and playtime remaining. The word processor does spell checking while you write and shows an animated help icon. a) Identify several processes in this system. b) Identify several threads in this system. c) Draw a picture of how the operating system may represent the various processes and threads at a given time. d) How are the threads in your picture related to the processes? Which other process - thread relations may exist? e) What differs between kernel-threads, user-threads and processes? Which data does the OS store about them? Which are the purposes and motivations of using operating systems?