info on i o port h requested all during my attempts to find out how the at harddisk controller works i stumbled across i o port h the normal controller ports are in the f h f h range so what does this port do the only information i have upto now about this port is that it is a write only port and the information you have to write in it is related to the number of heads on the disks could somebody shed some light on this and give me the missing info thanks engelbert torremans at t ns nl huizen the netherlands email etorrem cbnewsj att com
