1. In reference to computer files and directories, what does FAT standfor?

1. InWindows,whenauserdoubleclickson afilelistedbyWindowsExplorer,aprogramisrunandgiven that file as a parameter. List two different ways the operating system could know which program to run.

1. Some operating systems provide a system call rename to give a file a new name. Is there any differenceatallbetweenusingthiscalltorenamefileandjustcopying the filetoanewfilewiththe new name, followed by deleting the oldone?

1. A simple operating system supports only a single directory but allows it to have arbitrarily many files with arbitrarily long file names. Can something approximating ahierarchical file system be simulated? How?

1. A simple operating system supports only a single directory but allows it to have arbitrarily many files with arbitrarily long file names. Can something approximating ahierarchical file system be simulated? How?