From: Wayne Smith &lt;wsmith(a)gj.com&gt; maybe??) Truth is, as I remember buying a Kaypro in the Summer of 1984 in Los Angeles, nobody did really know what the difference was :-) Yes, that is 1983 or 1984. The year of manufacture. Things were changing fast. The Kaypro 84 added more graphics, (but you still had basically none) a 25 line screen, which there was scant use for, a double sided drive in the -10 and two of them in the 2, and more software, DbII was added to the list, and the newer version of cp/m. 2.2G or something. I think a 300 Bd modem was added to the -10 that year, but that won't help you now :] Something about another serial port added around that time I think also. The true techies here know more than I. There was something about a better ROM whatever, but that was mostly for the "graphics" as I remember and maybe the double sided 360 k disk drives. Somebody was selling one aftermarket anyway. I think you would want to stay with the -84 model if you want to get some work out of it. If your interested, I bought the "Business Pack" in July of 1984 Which included a remarked Brother daisy wheel printer and a KayPro 2X (2 double sided 360k drives) no modem, (couldn't imagine what I would do with that) all for only $1750. I thought it was the biggest bargain in the world watching WordStar spell check and print out my reports. Saved me days of work. I wore ear plugs while I printed out my work. Hope that helps, Jim, ??? ~ <---- KayPro graphics "You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? And radio operates exactly the same way: you send signals here, they receive them there. The only difference is that there is no cat." -- Albert Einstein (When asked to describe radio)