It stands for "True Type Font." .txt - This extension indicates a plain text file that can be opened with Notepad. .wav - This extension indicates a sound file that like the .mp3 file, can be opened with Windows Media Player or Windows Sound Recorder. .Wav files are much larger than .mp3 files. Save or convert your documents to a format that will work with different program first (that is, a program that you intend to keep) 2. Archive them onto a floppy disk, flash drive, or CD-ROM 3. Proceed with a program like CleanSweep. Using CleanSweep or any other similar type of utility could delete anywhere from less than a megabyte of hard drive space to over five megabytes and up. Scroll bar - this convenient tool allows users to move data up and down the computer screen. Status bar - this part of a program is located at the bottom-most part of its interface, and it usually displays small messages that indicate the progress of a command or task. If programmed incorrectly, an application might display the wrong information in this area. Banking is self-serviced through the desktop-clad ATM machine. Gas stations are self-serviced through a menu-clad touch screen kiosk. Most cash registers are Windows XP or Vista machines that send purchase details back to headquarters via the Internet (or a small Intranet). Having your weight, blood pressure, and heart rate measured and recorded is now a digitized process. Although the prices of computers are decreasing, they can still create a hefty expense especially if you need additional peripherals described above. In addition, you'll need to figure in costs for maintenance, servicing, and insuring. 4. Start comparison shopping and look for the "fastest and biggest. You could even block instant messaging and email from anyone who isn't a fellow AOL user. Other tools available online operate similar to the way that AOL's Parental Control settings work, however no collection of tools could replace the reinforcement of mom and dad. Never let your children speak with strangers and never leave them alone at the computer unattended.