You are right! Mea culpa. There is a further para: Like the UNIX system for the PDP-11, the current implementation for the VAX-11/780 maintains each process in contiguous physical memory and swaps processes to disk when there is not enough physical memory to contain them all. Reducing external memory fragmentation to zero by utilizing the VAX- 11/780 memory mapping hardware for scatter loading is high on the list of things to do in the second imple- mentation pass. To simplify kernel memory allocation, the size of the user-segment memory map is an assembly parameter which currently allows three pages of page table or 192K bytes total for text, data, and stack. This also deserves to be rewritten, both to allow varying process size, and to allow processes larger than physical memory through demand paging. Dynamic page table size would mean dynamic u area size if the page table remained part of the u area. This seems like a minimal "bring up" port of V7. Later they must have implemented demand paging?