Protected Mode Software Architecture helps readers understandthe problems that single-task and multitasking operating systems must dealwith, and then examines each component of both the real and protected modesoftware architectures. This book is organized into three parts. Part One:Background introduces the reader to the problems faced by a multitaskingoperating system. Part Two: Register Set and Real Mode provides anoverview of Real Mode operation. Part Three: Protected Mode takes abuilding-block approach to explaining the protection mechanisms andmultitasking capabilities of the post-286 Intel processors, includingsegmentation, virtual paging, the flat model, and virtual 8086 mode.