Over the last three decades, O. P. A. has produced many products, ranging from simple disk-based software for now retro classic home computers in the ’80, to more complex items in ’90s & 2000’s.

From Solid State Cartridges containing various programming utilities and cool-to-play video games, to writing complete Operating Systems, and producing hardware devices for various Home Computers and Video Gaming Consoles, we here at O. P. A. have done it all, or at least tried our very hardest at doing it, while still loving it!