Category: vendor-specific BIOS extensions

INT 66 - TI Professional PC - SYSTEM INFORMATION (NOT A VECTOR!)

Desc:	the low word of this vector contains the system memory size in
	  paragraphs; the third byte contains the number of outstanding
	  interrupt requests, and the fourth byte contains a description
	  of the installed drive types (see #03517)
SeeAlso: INT 60"TI Professional PC",INT 67"TI Professional"