Int 48 Fn 0B  - Ti Professional Pc - Get Extra System Configuration Infor  [b]

   AH = 0Bh

Return: AL = drive type byte (see #2877)
   BX = extra system configuration word 1 (see #2876)
   CX = extra system configuration word 2 (see #2876)
   AH destroyed

See Also: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah