Although the PET is most likely the more well-known of Commodore’s early computer systems, the KIM-1 (Keyboard Input Monitor) single board computer ... to be used with an external tape drive ...
Pineboards, maker of many hardware on top (HAT) boards ... external GPUs working on the Raspberry Pi. Beginning with the Raspberry Pi 4 and Compute Module 4, Geerling discovered some PCIe bus ...