I don't. If i was king of the US and all the computer fazzle going on back in the day, I would have put out a mandate that all computers from the // onward have some sort of minimal bootable OS in ROM, that can handle basic tasks with shell control. And all computers from that point on must have a standard serial networking interface, so that a //c could hook up to the very latest machine with no real issues.
It's not hard at all, the ROM thing would be a problem though. We already had FTP, we already know how to push data over four pins (clock, data+, data-, ground), simple serial interfaces and handshaking et al back in the 70's. Since the engineers who knew the ins and outs of the hardware et cetera, how hard could it be? Since memory was expensive, they could compress the system into ROM and use assembly language.
As for modern computers, they could have a simple OS like System 6 in ROM that can do simple stuff like blessing system folders and what not. Terminal would be a real bonus as well. You might say "But there's no room for a DIN-4 on a MacBook Pro 2x!!!!" I think a simple Ethernet to DIN-4 adaptor would suffice (or ThunderBolt to DIN-4). "But what if the FTP or the system ROM gets expanded with new features?" No problem, use programmable ROM chips that are cheap and easy to burn, and they plug into a DIP socket or something like that.
Something like that.
As for OS X with floppy drives, watch out for extraneous fat that the system plops onto the disk. 1.3MB could be suddenly reduced to 1MB free space without warning.
If you want to access the internet, there have been a handful of users here and elsewhere that have made pseudo PPP networks. Basically, dial-up-like but without the modem. I'll be looking into a writeup on how to do that once a certain member gets back from spring break.