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   alt.os.development      Operating system development chatter      4,255 messages   

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   Message 3,605 of 4,255   
   mutazilah@gmail.com to Alexei A. Frounze   
   Re: chromebook   
   18 Feb 23 07:23:04   
   
   From: muta...@gmail.com   
      
   On Saturday, February 18, 2023 at 3:27:16 PM UTC+8, Alexei A. Frounze wrote:   
      
   > Is there functional audio? That would be another modem.   
      
   Wow.   
      
   First I thought this was ridiculous or maybe a joke.   
      
   And then I wondered what a modem was. Before it was   
   just some sort of magical box that hardware people   
   deal with.   
      
   Then I realized that I can presumably get the telephone   
   connection wires and stick them onto a soundblaster 16   
   and make my own modem in C.   
      
   But I would need to use a telephone to dial out.   
      
   Then I realized that even the dial tones to dial out can be   
   generated and should work.   
      
   So. At what point in history could I have written a C program   
   on a PC to construct my own modem?   
      
   I spent a lot of time stuffing around with modems, and I could   
   have replaced them with a dedicated PC!   
      
   Regardless, back to the original question. I used the term   
   "modem" loosely. I don't want a modem - there are no telephone   
   lines (copper) in sight. What I want is a serial port. And not even   
   that. What I want is a BIOS to support INT 14H. What it does with   
   that I don't really care. Except I do care. I don't have a serial port,   
   I have a USB port, so I want the BIOS to be aware of that and   
   make the appropriate changes so that my OS (PDOS) thinks it   
   is talking to a modem, but is in fact communication to a virtual   
   modem in the BIOS, which is using NDIS over a USB tethering   
   port.   
      
   BFN. Paul.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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