Macs and their technology involved in it not being necessary to defrag it

It is great Macs don't need defragmentation , I didn't know this. I was wondering why doesn't Windows 7 use similar technology or programming. I have a computer with Windows 7 and you have to defrag it all the time? Has Apple shared this non-defragging ability with Microsoft? ( Do big companies share ideas?) (P.S.;unfair warning about my previous question. I HAVE NOT asked that many questions. Why would I be blocked?)