) will ultimately determine how often you'll need to de-dust your machine. But as an average, you shouldn't need to perform this procedure any more than once or twice a year. The entire exercise should take no more than twenty minutes tops and once complete, you'll immediately see and hear the difference in your machine. But be careful not to confuse these newest toys with sandbox devices. Sandbox devices are tools that come pre-loaded with things like calendars, calculators, and a notepad. What differentiates them from smartphones is that users can add (download and install) additional programs to smartphones and they seemingly become mini portable computers for the people who use them. You'll want to first, select the computers that will connect to each other and then install the network cards inside each of them. Then you'll connect a cable to each computer that will communicate with the server. These cables won't connect to the server directly. Instead, they'll connect to the router. And today, open source is venturing into the commercial realm as well. At first thought, the idea of open source may sound just plain crazy to those who earn a living from software development. But the facts point to a different prediction. Open source software puts companies in a terrific position to re-brand and re-position themselves in a market that they may have not been able to reach before. The Windows operating systems already comes with a useful collection of pre-installed programs and even some games. But one of the first things that people do is download a butt-load of new programs as soon as a brand new system is plugged in the wall and connected to the Internet. This article looks at some of the programs that are included with most new systems and then asks the reader to consider if they're sufficient. 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.