Dissecting DOS

Dissecting DOS explores the way DOS is structured and the way it works from a programmer's perspective. It illustrates DOS's overall architecture and command structure and then reveals the code-level details of vital DOS actions. The book includes coverage of the operating system RxDOS and MS-DOS clone created to emulate and parallel the commercial system. The actual MS-DOS source code is both secret and copyright protected. However, the inner workings of MS-DOS are discovered by studying the source code of the RxDOS clone included on the disk.