There are more technical errors already in chapter 1.1 Example 1: "A segment is a 1 MB portion of real storage as defined" No: "A segment is a 1 MB portion of virtual storage ..." Example 2: "A DCSS enables z/VM to load such data into a designated segment of physical memory" Wrong again, the pages of a DCSS are scattered in physical memory, surely no physical storage is designated; the virtual storage is.
Maybe the authors wanted to simplify the facts for a Linux audience. Kris
