This is because the defrag program simply organizes the files in a system that makes it easier for the computer to access. (Thus cutting down on the work required to find and load them). But this method merely "relieves" the symptoms that these files induce - it doesn't attack the cause. These files need to be deleted - not "organized! Automating Things with Batch Files They Work on Today's Computers Too! If you're familiar with MS-DOS at all, you'll recall that it's a command-driven operating system that performs functions issued at the C:> prompt. The only way to get an MS-DOS computer to do something was to type a command at this prompt and if you can imagine, it was a rather cumbersome way to use a computer. Or if a program were to calculate a date "x" days from now, the variable "x" would be an unknown piece of data until we tell the program what "x" is. In programming, it's sometimes required to work with unknown pieces of data. That's when conditions come in handy. Conditions allow a program to perform an action based on the outcome of a previous command.3 Using this type of instruction, we could instruct a program to do one thing if the "x" variable in our latter example turned out to be 7 days, and then do different thing if the variable turned out to be 3 days. If you find that you can't type information into one of these, you can effectively resolve the issue with a technician by calling it an input box, rather than a "white rectangle," or "place to put in text." Button - buttons perform a command after a user clicks them with a mouse. Problems occur when the text of a button is grayed out or if it doesn't appear to sink into the screen when clicked. Even ordering a pizza is now a simple matter of dialing from a wireless cell phone and making a few selections from series of pre-programmed menus! The important thing to realize here is that this phenomenon isn't a new convenience - it's a new requirement. And if you haven't jumped onto the binary wagon, you're going to face a few problems. Today's users require full multimedia capabilities, a wide range of graphics tools, and accommodations for the various portables we now enjoy. These extras aren't included with "what comes out of the box," and the only way to get them is to accessorize. To illustrate the importance of accessorizing, we like to use the "plain dough" analogy.