I/O port programming in C???

This is a discussion on I/O port programming in C??? within the C Programming forums, part of the General Programming Boards category; how do i send and receive data via the I/O ports in C?? what if on that port my modem ...

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    Question I/O port programming in C???

    how do i send and receive data via the I/O ports in C??
    what if on that port my modem is connected??
    so how m i suppose to program , so that the modem is ready to send or receive data??

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