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The Ware for August 2026 is the “IC unit” from a Lafayette 150-in-1 “IC Electronic Project Kit”, part number 99-35107. Above is a contextual photo of how the unit looked mounted in the kit. And above are a couple examples of projects you can build with the “IC” as part of the kit. Answering Hales’ […]
The structure in question for last month’s ware are a pair of NPN transistors that form the core of a bandgap voltage reference circuit. As its name implies, a bandgap voltage reference generates a near-constant voltage for use inside chips. The voltage is intended to be fairly constant over process variations, temperature variations, and power […]
The Ware for June 2026 is an SGI RM6-64 raster manager, from a KONA/InfiniteReality graphics system. Congrats to Christian for naming it! email me for your prize. This gem of a board was gifted to me by someone at SGI back when I worked there in…I want to say 1998? I even still have the […]
The Ware for May 2026 is, in FETguy’s words: “one of many large pc boards of a Rodgers Instrument Co church organ. The core memory was used to store and recall settings of the organ’s “stops”. There were 5 core memory boards in this instrument which differ in how many words were implemented. I photographed […]
Seems like I overestimated people’s interest in looking at silicon images! Congrats to k8 for attempting the challenge, I appreciate the participation. email me for your prize! Recall that the list of possible memory dimensions is limited to a list of 28 possible types of memories. Given that, here’s the mapping of macros to memory […]
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Say hello to apps.chofter.com, the new home for everything I build. The speed at which I ship new things has massively increased with the advent of AI, and I’ve been encouraged by the fact that, as I approach my sixth decade, new ideas for useful & fun things to build still come at me apace. These no longer fit on my personal homepage, which is a combination of work experience, interests, things I made long ago that are no longer relevant (but still interesting), and of course, the many apps & tools I have out there in the wild right now. The site was 100% built using Claude Code, which did an amazing job of inspecting all the various websites, app stores and code bases and constructing a site in 30 minutes or so. I had to push it to make the site more SEO friendly, pre-rendered to HTML rather than over relying on client side rendering, but that was it. So there we go, enjoy the delightful and hopefully useful apps that I’ve already built and will continue to build in the future
New in the SumatraPDF pre-release builds: DDE commands accept arguments Commands sent via DDE can take arguments, the same as in custom shortcuts (#5383). Loading message in tab While a document loads, its tab shows a “loading” message instead of the home page (#5385). Install 32-bit on 64-bit Windows The installer lets you install the 32-bit version on 64-bit Windows (#5379). Changes for this day · Full changelog
Kagi is ending development of Orion for Linux and Windows and open-sourcing both so the community can carry them forward. Our small team will now focus fully on making Orion for macOS and iOS faster, more stable, and more capable.
A clip of me singing a funny song from Gilbert and Sullivan’s Ruddigore back in 2013
In this video, we look at why fork() needs copy-on-write, how it works inside the kernel, and a memory usage problem that Instagram encountered with Python.
