Advanced DOS: Memory-Resident Utilities, Interrupts, and Disk Management with MS- And PC-DOS

Correct me if this is not the book I mentioned. I am talking about the book "Advanced DOS: The Microsoft guide for Assembly Language and C programmers", written by Ray Duncan, from Microsoft Press. This book shall be out-of-print, as it was published on 1986.If you are studying Operating Systems, and you are required to write a very primitive systems, I think you can get quite a lot of ideas from this book, as it is talking about the operating systems of 15 years ago. That shall fits your assignment very well. You learnt about its organizations, and the data structure required, so I suggest that you shall try to get one either from library or from the old book shops.