Yup exactly! I'm not too sure what the early systems were running on but here's a photo of early DAT load boards - https://www.dat.com/blog/life-before-load-boa

Yup exactly! I'm not too sure what the early systems were running on but here's a photo of early DAT load boards - https://www.dat.com/blog/life-before-load-boards https://www.dat.com/blog/life-before-load-boards