Data IO 29B PROM Programmer Demo: burning the HP 85 service ROM

Finally, it's restored! This beautiful piece of vintage professional hardware is quite a popular device among retro computing and arcade gaming people, because it's so nice and it can program stuff all the way back to bipolar PROMs. But it's not that obvious how to set it up at first. So for public good, here this demo where I will show how to set up this old beast, and I use it to program the elusive Service ROM chip for my HP-85. My many restoration videos on the DataIO 29B here: Part 1:    • Data IO 29B PROM Programmer Repair Part 1   Part 2    • Data IO 29B PROM Programmer Repair Part 2   Part 3    • Data IO 29B PROM Programmer Repair Part 3   Part 4    • Data IO 29B PROM Programmer Repair Part 4   Information on the HP 85 and the ROM drawer on my website here: https://www.curiousmarc.com/computing...