You may find yourself in need of more hard drive space for all those videos and mp3s that you download, for example. Or maybe that cool new programming language you've been dying to try requires more memory than what your computer currently has. Unless the activities on your computer are restricted to pure textual output (plain text files), your computer is going to get filled with a lot of "stuff" - stuff that can overfill a PC's capacity too much for the computer to function well. But in an environment where there are five, ten, twenty or more computers, buying a license for each computer can be down-right costly. So costly that the temptation to pirate a little software here and there can be pretty tempting. Co-workers are familiar with this temptation and they're often the ones who "share" purchased software among those who need it. So much emphasis is put on maintaining a computer's operating system that we sometimes forget how important it is to maintain a computer's hardware components. Since there can be quite a few components to take care of, let's talk about the most important one. The most important component of a computer's hardware system is its fan. As mentioned, smartphones give us the ability to not only carry our data around with us where ever we go, it also gives us the ability to edit that data any place - any time. In today's "reality" based generation, we're always looking for the opportunity to capture and relive a moment. And we want to share that moment with others. avi - This extension indicates a video file playable by most multimedia viewers including Microsoft's Media Player. .bmp - This extension indicates another image file that might have originated from Windows Paint program. .dll - This extension indicates a Dynamic Link Library which may contain additional programming code for software. WordPad can also save documents as plain text, rich text, and MS Word documents. So with WordPad having the ability to read and create rich text; embed objects (sound, pictures, and video); and manipulate fonts, we have to wonder if other word processors, which do the same thing, are really necessary.