What do an open-source Windows clone, a 50MB Linux distro, and an operating system built entirely in Rust have in common?

I have a decade-old Dell Inspiron laptop with a 2nd-gen Intel Core i3 processor, 4 GB RAM, and an integrated Intel HD GPU. It came with Windows 7 out of the box and was eventually upgraded to Windows ...

Damn Small Linux (DSL) is a lightweight GNU/Linux distribution designed to breathe new life into old computer hardware by offering a full desktop operating system that runs on a wide range of hardware ...

There was a time when the gulf between a new computer and one a decade or more old was so large as to be insurmountable; when a Pentium was the chip to have an older computer had a 16-bit 8086 or 286.