Sorry about the confusion. No it doesn't have a Twiggy drive in it. Although that would be really really cool! The disk is a program disk for Fileware. I never heard of a program called that since that was the name for the Twiggy disks. I couldn't imagine actually a company getting away with using the Fileware name since Apple trademarked it. (They did trademark it, didn't they?) Oddly enough someone added a fan to the inside of the case of the 128k. It's not screwed in to the case, so they didn't mar it. But I must say it's quite an interesting machine!