I'm sure more collectors have even older computers as well, Apple or non-Apple. I have a Tiki-100, a Norwegian made Z80-based computer running a derivative of CP/M. It has two RS-232 ports. I want as many of my computers functional and connected to the internet as possible. I suppose I could re-enact the days when you would connect to a mainframe (in my case the G5) and use the Tiki-100 as a terminal. I believe the Mac serial port is both RS-232 and RS-422 compatible, so making a null modem cable would be the easy part. I have never used Kermit, but it does run on just about any imaginable system. Could I use it to connect to an old networked Mac, which then connects to the G5? Or is the only practical way to connect directly to the G5 with a USB-RS232 adapter?