write to external device

[dummies]

hi everybody..
i'm new in assembly..
i had a problem in writing to external device such as hard disk or floopy disk
anybody have any idea or suggestion how to write it because i really have no idea how to do it
can someone help me...please..thanks

[hutch--]

Sounds like school work again. Tell us what OS you are writing for and someone may be able to help you. Note that members will not do your homework for you.