Master operating system development. FreeDOS Kernel explains the construction and operation of Pat Villani's DOS-C - a highly portable, single threaded operating system. Written in C and with system calls similar to MS-DOS, the FreeDOS kernel provides an excellent source code base for experimentation. Study it, modify it and use it without getting lost in the complexity of most microkernels. The book and companion disk include the full source code for an 80X86 kernel and support files. Achieve real platform independence with DOS compatibility. FreeDOS uses the de facto DOS hardware standards and provides binary compatibility for MS-DOS applications, compiles with Borland C, Microsoft C and other C cross-compilers without using their run-time libraries, and is the kernel provided by the FreeDOS community on the Internet. Provide embedded systems with full OS functionality. The FreeDOS kernel provides embedded systems applications with the functionality of larger operating systems, including file storage, embedded databases, and sophisticated device control. Simplify the design of your embedded systems by using your PC for development and then linking your own version of FreeDOS to create the application ROM.