0:41Ah                   Keyboard Buffer Head Pointer
 
 Length: 2 bytes
 
    This word points to the next character code/scan code to be removed
    from the keyboard buffer. If the head pointer is equal to the tail
    pointer (0:41Ch), then the buffer is empty.

Seealso:


 INT 16h, 00h 
 0:41Ch 
 0:41Eh 
 0:480h 
 0:482h