xmodem, zmodem or kermit would be used with the RS-232 to transfer files to an external computer. The non-standard RS-232 may be to be a receiving mode as opposed to host mode.
I would imagine so, that this was already in some heads at the time. TCP/IP prototypes go back to the 70s, although IPv4 came to standards only in I think 1983-ish. Mobile evolution with 1G and 2G came to standard terms in the very early ninetines, and soon after introduced packet communication, although with a meager 9600 bits in the first iterations. But mobile networks pre-G1 ("G0") already existed since the 70s. And, as far as WiFi data communication technology goes, it was IIRC demonstrated in the early 70s as well. So I believe the concepts were surely known at the time, though no actual use-case had yet materialized, and technology was also not yet ready.
@@AdrianuX1985 Yes, it was called ALOHAnet. It's certainly not what we think of WiFi networks today, but somewhat a distant precursor technology. And some of the ethernet characteristics we still use today date back to this original concept.
This may also explain why ACT's Apricot PC format 3.5 inch disks are not compatible with the IBM disk format, as the Apricot PC was developed in 1983. The Apricot PC also ran MS-DOS 2.11 and CP/M-86
Yeah, it's well possible. Don't have an Apricot, so I never dug into that topic. But I have another machine here, which came in the same period with 3.5" drives, and originally with MS-DOS 2.11 as well. It too, when running MS-DOS 2.11 has floppy interop issues, but works just fine when using a later release of MS-DOS 3.2.
4:18.. I wonder if it would be possible to login to a computer with, for example, Debian via the RS-232 connector? Terminal session from HP 110 to Linux Debian.
I‘d think very much like in the same way as the floppy drive. You configure it‘s presence. Like for the floppy, telling in config there is 1 (up to 3 floppy drives sre supported), and then you can start using it. I‘d assume for printers and other extensions it woulf be likewise. Can‘t demo it, as the only HP-IL devices I currently have is three shown in the video. Would love to get though the HP-92 (www.hpmuseum.org/hp92.htm), my father had this one, with many accessories. Though everything thrown away in the years…