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Homemade DIY Custom GPU Card RISC-V Bitluni
Bitluni has spent years pushing DIY electronics further than most people expect. His earlier clusters packed a few hundred small RISC-V chips onto compact boards and proved they could outperform a regular desktop processor on certain tasks while using almost no power. That success led him to ask what would happen if he kept scaling. The answer sits on his bench now: an ultra cluster built around 8,192 individual microcontrollers running at 100 MHz, managed by 256 larger controller chips.

1980s Motorola Microcontroller Up-Close Microscope
A single chip bought on a whim during a late-night scroll turned into an excuse to rescue an old laboratory microscope and finally see what its silicon actually contains. The part in question is a Motorola MC68701, a microcontroller built in the early 1980s. It packs an enhanced 6800-family processor, 2 kilobytes of ultraviolet-erasable program memory, 128 bytes of RAM, a serial interface, a programmable timer, and 29 input/output lines all onto one piece of silicon. In its day that counted as a complete small computer in a single package, and it could even reach out to external memory to grow beyond its on-chip limits.

Valve Steam Machine 2013 Xi3 Piston
Early in 2013 a small Utah company walked into CES with something that looked more like abstract art than a gaming machine. The Xi3 Piston sat there as a compact metal cube, roughly four inches on each side, with indented sides and a front grille that gave it a distinctive industrial look. Valve had invested in the company and even displayed the device in its own booth. For a brief moment it seemed like this odd little box might become the foundation for a new kind of living-room gaming experience built around Steam.

Hand-Built DIY Magnetic Memory Module
Polymatt grew tired of watching memory prices climb. Instead of buying another expensive chip, he reached back to the 1960s and built storage the way engineers once did. Tiny ferrite rings now sit inside a compact case. Each ring stores one bit by holding a magnetic field in one direction or the other. Sixty-four rings together hold eight characters of text. Remove all power and the information stays exactly where it is.

Valve Steam Machine Upgrade RAM SSD Teardown
Valve just released Steam Machine, a compact computer designed to run SteamOS in living room settings. It arrives as a small black cube with ports along the base and a simple power button. The package includes a matching controller and targets people who want console convenience without giving up access to a full game library. A popular YouTuber who focuses on hardware decided to explore what sits inside one of these units. ETA Prime bought the 2TB version and set out to document every step of opening it while also pushing the specifications higher.

Child Kid-Friendly Laptop DIY
Parents watch their children reach for screens earlier each year. Short videos and social platforms pull attention hard, and the effects show up in shorter focus, less interest in slower activities, and early exposure to material that simply does not belong in a young life. One father decided the standard options did not fit what he wanted for his seven-year-old son. He took an older laptop and shaped it into something different.