DA> I asked he about UART chips, and gave her the utility to check it.  She say
DA> her computer doesn't have one, but her modem does (16550).  I've never hear
DA> of that. Wondered if anyone else has.

An internal modem will use it's own internal UART.  (Actually UART
emulation.  Same difference.)

It is unusual for a computer not to have one, if at least for a mouse.
Most I/O cards will have one.  But no, the internal modems use their own
internal uarts, which are naturally going to be buffered (and report
themselves as 16550AF's, usually.)


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