There are several ways to transfer files from one computer to another. You can put the file on a floppy or Zip disk in computer A, then put the disk in computer B and copy the files to that computer's hard drive. This is adequate if the files are small and the computers are close to each other. You can't send the file through email, and you risk damaging the disk or the data on it when you transport it. A common floppy disk is essentially useless and, more often than not, more risky to use than networking.
Floppy disks are subject to disk errors much more than hard disks and network servers.
You can lose floppies. In the bottom left pane, select the zone that the shared computer is in. In the right pane, a list of computers will appear. Double-click on the computer you would like to have access to. Enter your user name and password in the dialog box that appears.