OSDev.org

I think we have all established that in a multitasking environment is is common practice and indeed a good idea to use interrupts to handle I/O, however, as was pointed out on previous postings, there are circumstances, especially on single tasking systems, where a polled I/O provides both a quick and easy method to handle the I/O and is also an interesting example of coding in general, to that end jamethiel's posts are more than valid though certainly not an advocacy of I/O for all circumstances