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  Service C0H (decimal 192) returns the address of a table of descriptive
  information pertaining to the hardware and BIOS configuration of a PC/AT
  (in ROM BIOS versions dated 6/10/85 and later) or PS/2. Figure 12-8 shows
  the structure of the table. You can find the meaning of the model and
  submodel bytes in Chapter 3, page 64.

  Offset         Size           Contents
  --------------------------------------------------------------------------
  0              2 bytes        Size of configuration information table
  2              1 byte         Model byte
  3              1 byte         Submodel byte
  4              1 byte         ROM BIOS revision level
  5              1 byte         Feature information byte:
                                Bit 7:  Fixed-disk BIOS uses DMA Channel 3
                                Bit 6:  Cascaded interrupt level 2 (IRQ2)
                                Bit 5:  Real-time clock present
                                Bit 4:  BIOS keyboard intercept implemented
                                Bit 3:  Wait for external event supported
                                Bit 2:  Extended BIOS data area allocated
                                Bit 1:  Micro Channel bus present
                                Bit 0:  (Reserved)
  --------------------------------------------------------------------------

  Figure 12-8.  System configuration information returned by service C0H.