How does CPU switch from one process and to other explain in brief by drawing figure?

Which is the correct sequence of steps to set up a document in landscape orientation? Why trackball is expensive? What is interprocess communication in UNIX? Does Chris Brown have a Skype account? How do you replace a missing command.com file? Where are the media files you create stored? What two message timing mechanisms are used in data communications? How does one get into a Netgear router? What does the Adobe Digital Publishing Suite offer to customers? Do Magnetic storage devices use disks that are coated with magnetically sensitive material and use sectors to read information by transforming electrical impulses into a varying magnetic? What is the program used for organizing numbers andor text into columns and rows? Is the blackberry tablet good? When you cut a text do you permanently remove from the document true or false? Why there is no PayPal services for Montenegro? What is the best external floppy drive to transfer 3.5 floppies to a MacBook Pro laptop CD? How do you delete Windows XP from your computer? What are the arguments in an if function? What major city is Richmond TX near? What does the term valve overlap mean? What is cubic close packed structure?