Modularization and Hierarchy in a Family of Operating Systems This paper describes the design philosophy used in the construction of a family of operating systems. It is shown that the concepts of module and level do not coincide in a hierarchy of functions. Family members can share much software as a result of the implementation of run-time modules at the lowest system level. CACM May, 1976 Habermann,A. N. Flon, L. Cooprider, L. incremental machine design, module, data type, address space, virtual memory 4.0 4.30 4.35 CA760504 JB January 4, 1978 3:33 PM 1828 4 2867 1854 4 2867 1877 4 2867 1960 4 2867 2150 4 2867 2317 4 2867 2319 4 2867 2377 4 2867 2342 4 2867 2376 4 2867 2379 4 2867 2424 4 2867 2482 4 2867 2480 4 2867 2618 4 2867 2632 4 2867 2704 4 2867 2704 4 2867 2723 4 2867 2738 4 2867 2738 4 2867 2740 4 2867 2741 4 2867 2867 4 2867 2867 4 2867 2867 4 2867 3004 4 2867 3030 4 2867 3155 4 2867 3184 4 2867 1749 5 2867 2247 5 2867 2379 5 2867 2867 5 2867 2867 5 2867 2867 5 2867