The PCBIOS Alternate Terminal Driver
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     The PCBIOS terminal driver uses BIOS calls instead of direct screen
     writes.  It is designedd for applications that trap BIOS calls to
     redirect output over telecommunication lines or to convert output to a
     form compatible with two-byte character sets.

     Note:  The PCBIOS terminal driver fully supports all screen and
     keyboard functionality of the default terminal driver.  This includes
     the ability to save and restore screens and support for all keys on the
     standard 101-key keyboard.