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What is a MAC Address? – Here’s a Concise Explanation

PowerCert Animated Videos offer clear and concise explanations of big concepts in computer hardware and networking. I referred to them fairly often when I was teaching an introduction to networking course last year.  The latest PowerCert video is MAC Address Explained. As the title states, the video explains what a MAC address is, how it’s written, […]

What is a Default Gateway? – A Concise Explanation

PowerCert Animated Videos is a great YouTube channel that publishes clear and concise explanations of big concepts in computer hardware and networking. Over the last couple of years I regularly used the videos in EDpuzzle to create short introductory assignments for my students. Default Gateway Explained is the latest video published by PowerCert Animated Videos. […]

Lava Lamps and Security

Network and data security is something is emphasized throughout the year in my Introduction to Networking course. To spark discussion in the class, I often share show short videos about interesting security incidents as well as short videos about implementing security systems. One of the videos that we watched this week was about Cloudflare’s use […]

An Overview of Fishbowl – A Professional Discussion App for Teachers

Last week I published a post about Fishbowl that generated some good questions from readers about how the app works. Fishbowl is more than an app, it’s a professional discussion network. Teachers can join Fishbowl to engage in discussions on issues important to educator community. Fishbowl will let you participate in discussions anonymously, on the […]

IP Addresses Explained by Common Craft

You may have heard the techie people in your life use the term “IP address” while explaining a problem regarding your computer connecting to the Internet. And if you’re like a lot of people who don’t work in networking, you probably wondered what the heck an IP address is and why it matters. Common Craft, […]