Wipe up remaining dust with your anti-static rag and then reassemble the computer. One thing that you certainly don't want to use to remove computer dust is a vacuum cleaner. Although using a vacuum cleaner seems to make more sense, the strong suction of a vacuum cleaner can actually spark damaging static electricity or dislodge loose cables. Within this small section of Windows, you can make some major changes from the way that your computer looks to the way that your computer responds to the people who use it. But your specifications don't just apply to Windows, they also apply to the many software programs that are installed onto the computer (not to mention that many software programs can be further customized through their own configurations). This will decrease the time it takes for your computer to send it elsewhere, and it will also decrease the time it takes for someone else to download it. To create your own .zip or .sit file, you can select a single file or a group of files from within Explorer, and right-click the selection. Again, depending on how you installed Winzip or StuffIt, you can click the "Add to Zip" or "Add to Sit" option and have these programs automatically archive the file(s) into one. Once the hardware is set up correctly (you'll need to read the instruction manual of your equipment for details), you can then setup the network from Windows on each machine. Within Windows, you can set up a home network similar to the way that you set up an Internet connection. Only this time, you'll set up a LAN (Local Area Network) connection. Let's say that every day we need to load up the Yahoo web browser, Microsoft Word, and then the calculator that comes with Windows. Instead of doing this by hand, we could write a batch file to do it for us. First, we'd load up Notepad and type in the following: START "http://www.yahoo.com" START "c:/program files/microsoft office/office/winword. It's costly to produce and as you can probably guess, that cost is passed on to the end user: the consumer. Open source software on the other hand is free. Free to download, free to install, free to use, free to modify, and free to share. Started over twenty years ago, it's a phenomenon that is gaining in both popularity and exposure.