Connecting a PS2 or USB keyboard via rs232 serial port to a computer on ms dos?

Question

Iron

There is a computer (not quite - handler pc hewlett packard 200lx ) on ms dos, and the need to connect a keyboard to it via rs232, because. ps2 is not present (and the hardware one is dying).
Surprisingly, I found little information on this problem, namely:
- a guide for connecting an ancient apple newton keyboard - www.palmtoppaper.com/ptphtml/36/pt360021.htm
- instructions on how to make a PS / 2 adapter => com + driver from apple newton keyboard - w3bsit3-dns.com/forum/index.php?showtopic=16583
- ready but expensive and DIY instructions for ps2 => rs232 adapter - www.go4retro.com/products/ps2-encoder
- DIY adapter for mouse, but not for keyboards -https://hackaday.io/project/27575-ps2-to-rs232-mou...
- Possibly useful Bluetooth module HC-06 4pin RS232 TTL for Arduino - https://bigl.ua/p642784645-bluetooth-modul -rs232
- Unknown Price Converter PS2 -> rs232 - www.globalsources.com/gsol/I/LAN-card/p/sm/1003303...
- and another one - www.versalent.biz/seradpt.htm
Like me It seems that the easiest option is the instruction with w3bsit3-dns.com + driver from newton keyboard, but maybe you know how to make friends with a PS2 keyboard or even USB c rs232?

Answer 1

We do not know. I believe that you are the only user of this miracle here. It's probably easier to find some forum where the owners of ancient iron hang out, because here soon, at the mention of MS-DOS, they will ask "What is it?" :D

Answer 2

I found a possible solution myself, tk. Keyboards for PCs with rs232 do not really exist, they are available for old PALM PDAs and its temporary competitors. I ordered a keyboard from palm with, as they say, with an rs232 interface ( https://hackaday.com/2015/04/04/repurposing-a-palm... ), I will try to start it.