0x3CA
0x3CA is a hexadecimal address commonly associated with the Video Display Combination (VDC) in the IBM PC and compatible systems. The hexadecimal system is a base-16 numbering system that uses digits 0-9 and letters A-F to represent values. In this context, 0x3CA is the address in the system's Input/Output (I/O) space where the VDC's status register can be accessed.
The VDC is a component of the IBM PC's video system, responsible for controlling the display of
Programmers and developers working with low-level system programming, operating system development, or hardware emulation may need
In summary, 0x3CA is a significant address in the IBM PC's I/O space, associated with the Video