Source: https://unsplash.com/

Timesharing became a serious thing in the 80's. Not talking about the real estate credit card trap here, but timesharing on microcomputers. Multi- and hyperthreading is so natural to us nowadays, that few people remember, how hard it actually is, not only to build a multithreading capable operating system, but to make it thread save. To ensure that code stays code and data stays data and the latter never gets executed.

This very funnily written piece of memory is the HN find of the week and definitely worth reading it. Especially when you ever got in touch with a PDP-8. And are old. As us. 👴