# Files

File Name Extensions
Programs Associated With File Types
Hide File Extensions of Known File Types
Command Prompt - (DOS Window)

- ping
- nslookup
- tracert
- dir
- short file names with tilde (~) character

Windows Explorer

- Directory Tree
- Expanding and Collapsing Directories
- Changing the View
- Sorting by Name, Size, Type, Date/Time
- Creating a New Folder
- Renaming a Folder
- Creating a New File

Network

- Computer Name
- Shared Folders
- UNC - qualified UNC filename
  UNC paths follow the general form \\ComputerName\SharedFolder\path\file

In a network, the Universal Naming Convention (UNC) is a way to identify a shared file in a computer without having to specify (or know) the storage device it is on. The UNC can be used instead of the local naming system (such as the DOS naming system in Windows). In Windows operating systems, the UNC name format is:
\\servername\sharename\path\filename

#### universal naming convention (UNC)

A naming convention for files that provides a machine-independent means of locating the file. A UNC name will usually include a reference to a shared folder and file accessible over a network rather than a folder and file specified by a drive letter and path. For example, the UNC name for a database named Northwind.mdb on a shared directory named Samples on a computer called MyWorkstation would be \\MyWorkstation\Samples\Northwind.mdb.

The UNC is particularly useful in Web-based applications because it allows you to reference data that is not necessarily stored on a particular Web server.

Files: Copy vs. Move

- Send-To
- (viewing default action using right drag)
- (moving icons on or off the start menu)
- Refresh

Selecting Files

- Contiguous Files
- Noncontiguous Files

Finding Files
Formatting a Disk

- How to format a disk
- Make system disk
- Copy a disk

Backing Up Files

- Checking to see if the files will fit (copying to floppy diskette, copying photos from digital camera memory card)

Checking a Disk Drive for Errors
Defragging a Disk - may take a while depending on the extent of fragmentation
Trouble-Shooting a Disk Save Error

- Check to see if disk is full
- Checking for errors