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The log in our family firewall caught one of our home computers assaulting another one with three packets. It’s called a “Denial of Service” attack and it comes from a virus, affectionately named as you can see in the snippet … Continue reading
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Does your HDMI-fed TV go black for a second or two and then come back on? If so, you may have what I’m calling HDMI Blink. Ending a multi-year, on-and-off quest, I think I understand the cause and, with it, … Continue reading
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Ok, Ok, you’re right. It’s a new toy and I wanted to show it off. You’re absolutely right. But I learned some things and can do better on my next wire antenna. So, take this as a sales pitch or a … Continue reading
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Four days this week and then the same next week, I’ll be teaching via laptop and headset. This week it’s hard real-time and next week it’ll be harder real-time – avionics. The difference is in dealing with the inevitable “Oops!” … Continue reading
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Opening the door to the unventilated warehouse, the acrid stench was unmistakable. “What’s that smell?” someone asked. “It’s rosin-flux, the wetting agent used when soldering resistors, capacitors and wires to electronic circuits. The rosin comes from pine trees. When the … Continue reading
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After a high school field trip in the mid 1960s to see a digital computer, my electronics teacher said, “Digital computers will never last.” “Analog computers,” he went on, “are faster, more reliable and have some practical uses besides accounting … Continue reading
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Grand knows his stuff — thank you, Sir! More flux did the trick. If you’ve been following the action here, you’ll know that I botched my first attempt with the integrated circuit you see here as “The Problem”. The two … Continue reading
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It’s only 1/8″ across so those five wires sticking out each side are very close together. The tip of the soldering iron I tried to use is too big – it bridges all five wires at once. I should’ve stopped … Continue reading
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Yes, these are slide rules, a round one and a straight one. Before computers, this was how engineers computed. And before that, they used logarithms which, as it happens, are the basis for slide rules and, later, some of the … Continue reading
