ICA-CP: 4/8/09 - Game classes, Jeliot, and file systems

Good morning!

We will go over our game classes then learn about file systems and Jeliot. Jeliot is a computer animation of running Java program(s). Will will be installing Jeliot today. Here is some info about file systems using SEXI.

State: A file system is a way in which files and folders are organized on a hard drive. A hard drive is designated by a letter followed by a colon, or ":", followed by a folder name. The name of the very top folder is root, and it is represented by the first backslash ("\") in the name.

Elaborate: A file system may exist only on your computer. Or, it may include shared folders that are on other computers on your network. A file system consists of folders, which are subdirectories, and files. File have a name followed by a period followed by a file extension. Common file extensions are: doc, mp3, avi, xls, txt, java, class, jar, jpg, gif, exe, dat, and ppt. For a list of file extensions with their applications, see Wikipedia at: http://en.wikipedia.org/wiki/List_of_file_formats_(alphabetical). An example of a hard drive name is: C:\

eXemplify: Your local disk on your computer is usually the "C" drive, and the root of C is represented as: C:\ The "R" drive is another drive, but it is on the network. It's FQFN, or Fully Qualified File Name, is \\Ica-server3\student data\ where \\Ica-server3\ is the name of the computer where it resides. So, for the Jeliot installation program for example, the FQFN for it is: \\Ica-server3\student data\Clingingsmith,Debbie\Jeliot Install\Jeliot3.7.2.exe\ where Jeliot3.7.2.exe is the name of the file and the rest of the information in the FQFN are folders or subdirectories along the way.

Illustration: A file system is like and upside down tree with nodes. A FQFN is like a path through the tree to a destination.