At 09:55 AM 5/30/02 +0530, Sridhar J wrote:
>Hi
>
>Something offtopic, but one question, what is a hardware modem and what is a
>software modem?
A "hardware modem" uses a standard modem chipset to implement the modem
functionality (encoding the computer's digital signal in an analog signal
suitable for transmission over a phone line, and decoding such signals from
the outside) and communicates with the computer as though it were a serial
port (that is, through a UART).
A "software modem" uses a more general-purpose chipset (something similar
to a DSP, I believe) and requires that the computer run software to control
the chipset's D-A encoding and A-D decoding.
To get a better understanding, try these URLs:
http://www.idir.net/~gromitkc/winmodem.html
http://linmodems.org/
--
-----------------------------------------------"Never tell me the
odds!"--------------
Ray Olszewski -- Han Solo
Palo Alto, California, USA [EMAIL PROTECTED]
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