Protection and Relocation for the 11/25

This interoffice memorandum from Van Diehl to Gordon Bell and others, dated October 14, 1970, emphasizes the critical need for a hardware protection scheme for the PDP-11/25 real-time monitor. The author argues that a real-time multiprogramming system requires such protection to prevent tasks or executives from being destroyed by running processes and to effectively manage Common and Global Common memory areas. Additionally, the memo touches upon the importance of addressing data queuing in a multitask system, noting that these features are essential for the PDP-11/25 architecture and requesting a meeting to ensure alignment on development.