August 8, 2009
Have you ever wondered how satellites can track mobile phones? It seems like they’re so far away, yet they can be accurate within about 15 meters. Just how is that done? The key to tracking any signal, whether it be cellular or radiowave signals, is something called trilateration. In order for trilateration to be used [...]
July 31, 2009
Once you finish this article, I’m sure you’ll be amazed that the Internet works at all! It’s easy to complain about slow download speeds, or lost e-mail, but, geez, it’s the Internet! Ten years ago most of you were still buying magazines, and renting videos, and going to the post office, and ordering things from [...]
July 30, 2009
Skype, like many other VoIP (Voice over Internet Protocol) clients available, has changed the way we think about communication and keeping in touch with loved ones over great distances. Whereas as little as five years ago, most people still had to rely on obscenely expensive mobile and PSTN (Public Switched Telephone) networks to carry their [...]
July 28, 2009
Satellite Internet service appears to be becoming more and more popular. Once the exclusive domain of exploration companies and war journalists, there are now thousands of people with an extra dish on the home or RV. Part of the reason for this is that certain technologies have increased the bandwidth and decreased the cost. Now, [...]
July 22, 2009
In my role supporting SCADA units in the field, I’ve often been asked how does Wireless Internet work. I usually answer with the question, “Which kind of wireless Internet?” Some people say that WiFi is wireless Internet, some think of radio-based Internet access as wireless, some even think of satellite Internet access as wireless. Then [...]
March 12, 2008
Lately, Linux has been receiving quite a bit of notice. Between the ASUS EeePC, the One Laptop Per Child project, Dell’s new Ubuntu line, Intel’s Classmate PC, and Everex’s Green PC, Linux has been getting a lot of attention from computer manufacturers. It seems every new computer in the last year has had Linux, but [...]
