For my first Tech Tuesday post I'll start with a question: What's the oldest piece of tech you have still laying about?
I have a vast collection of old routers, ancient network Ethernet Switches, printers, cables & miscellaneous old calculators.
I'm an HP RPN guy myself and rarely use my old HP 41C or 32S any more. My iPhone now serves as my go to machine when I need to work some math. If you are like me and find the default apple calculator lacking check out the Apple App store. It has a great collection of calculator emulators and including many HP-like RPN versions. My go to iPhone calculator is Free42. As it's name implies it's free and works well. It may not have all the programing functions of some of the more advanced emulators out there but, it's free. Give it a try.
As for working electronics I think I'm most proud of my old Palm Tungsten T3. It's rugged and well designed for it's day too bad HP had to go and ruin it. At this point it's worth next to nothing so for now I keep it tucked away. Who know's maybe it will be worth something some day.
So how about you? What do you have laying about? Do you still use it every day or even every month? Let me know in the comments.