Programming a computer is creating a sequence of instructions that enable the computer to do something.1 The people who program computers (called programmers) use a programming language to communicate with a computer. You might have heard of some of these languages in the past such as Visual Basic, C++, or Fortran. But what most new computer users don't realize, is that without an operating system, that computer would be a simple shell of possibilities. A powered computer lacking an operating system wouldn't display anything more than a bunch of confusing text messages that describe the computer's boot process. jpg - This extension indicates yet another image file and it stands for "Joint Photographers Experts Group." Like the .gif file, it's commonly found on Internet web pages, however it's much smaller than both the .gif image and the .bmp image. .mid - This extension indicates a sound file created with a Musical Instrument Digital Interface. You can monitor the conversations your children have with their friends and teach them appropriate online behavior at the same time. You can make recommendations and create a private time for quality time as well. The third step involves blocking access to inappropriate areas altogether. You and your children may not always agree about what's appropriate, but as a guardian, you're in control and you're ultimately responsible for their safety. Open Source Software If you've spent any lengthy amount of time on the Internet, you've probably heard of open source software but might not have fully understood what it is and why it even exists. This article will describe this recent phenomenon and describe some of its benefits for the software using community. The last advantage that shareware has over commercial software (but certainly not the least) is its applicability. Plain and simple, shareware is the best bet when you want to keep on top of the latest release of a particular program. Sure, computer stores do their best to keep their inventory up to date, but when you can download version 5.6042 of a shareware program as opposed to buying a commercial 3.0 version from the local computer shop, there's just no comparison.