Mongo

Alps keyswitches make everything better. Every time.

Just wanted to say thanks for this write-up. I am just starting down the path of refurb'ing a 600xl and I keep coming back to this. I never owned an Atari growing up, but the more I read of the specs and architecture, I think this could be my go-to retro machine going forward. I keep digging for info on the system and things like the Ultimate Cartridge. I never realized how flexible the cartridge memory addressing system is - it's pretty impressive compared to other systems of its time.