The OSI Model: Still Relevant? Nearly anyone studying networking will encounter the OSI Model and the TCP/IP Model early on. These are often presented as models, not absolutes, and there are many protocols that don't cleanly fit in the model, which becomes quickly apparent the more you look at it. In an
Doing Every Arduino Project: #1 To continue the momentum from building a single-board computer, I decided to go through all of the projects in the Arduino Starter Kit. The idea was that this would be a fairly straightforward, plug-and-play endeavor. What actually happened is that I got shot headlong into firmware troubleshooting, but after the
DNS: An Often-Overlooked Privacy Consideration When mass collection of telephone metadata in the U.S. was revealed, there was a public outcry and demands to cease operations of this warrantless data collection. It's pretty easy to understand that knowing who you call, when, how often, length of conversations, and the first known connection
What It Means to "Build a Computer" I had the good fortune of spending the weekend at VCF Southwest, a Vintage Computer Festival that goes to multiple locations. I'd long had a desire to get closer to the hardware than I'd previously been able to, both in terms of the type of work
A Meditation on Standards When I started middle school (not recently), it was the first time I had different teachers for every subject. Before then, I had one way to format my name and details on my papers, one set of rules, and so on. I was surprised to find that each teacher had
