Schools can research student versions of commercial software or ask for a school discount. Just because school rates aren't advertised, it doesn't mean that they aren't available. Freeware or open source software (also described in another one of our articles) is another alternative to pirating commercial-ware, as well as shareware. The email messages are often disguised as important messages from well-known online establishments, and they often try to scare their readers into clicking links with threats of closing an account of some sort. Sometimes the links are harmless and attempt to con the reader into volunteering personal information (credit card number), but other times the links attempt to download harmful software onto a computer. Worst case scenario: the motor can overheat and stop working as well. No motor equals no computer. Keep your computer's fan clean by preventing the fan from getting dirty or dusty in the first place. Use the computer in a dust-free environment and never smoke around it. Nicotine and tar mean certain death when it comes to computer fans, however should you find a need to clean the fan, do so with extreme care. Use extreme caution when downloading .exe files from the Internet since malicious programmers like to hide viruses in these types of files. .gif - This extension indicates another image file and it stands for "Graphics Interchange Format." .Gif files are often smaller than .bmp files (described earlier) and they're commonly found on Internet web pages. We download files from software libraries, ftp directories, YouTube and Google Video, MP3 sites, and we download files sent to us as email attachments. Being so popular an activity, it's imperative that you compress the files destined for another computer. File compression combines a number of different files into one file, and it can also significantly reduce a very large file to a smaller one. And don't forget the most important role they play in a child's homework-clad life: A simple encyclopedia CD on a used computer makes excellent research tool (not to mention a rather fancy calculator!). 2. Donate it to a less-fortunate or less-literate family member. We often joke around the office about the "grandma" who refuses to use a computer until she can afford the "latest" one.