TI-99/4A retrotech

Forgotten Innovations: The Unseen Legacy of the TI-99/4A

The TI-99/4A looked like a beige toy. Under the lid it was quietly ambitious: a 16‑bit CPU, a discrete video co‑processor, ROM‑based GROMs and a speech module that made machines talk. This post traces… more

Forgotten Innovations: The Unseen Legacy of the TI-99/4A
IBM PC XT retrotech

Using the IBM PC XT for Creative Coding: A Retro Programming Challenge

Dust off an IBM PC XT (or fire up an emulator) and discover how the machine's severe limits force beautiful, surprising creativity. Practical setup ti… more