PDP-11 Packaging Concept

This interoffice memorandum, dated February 6, 1969, details the modular packaging design of the PDP-11 computer system. It describes the use of "macro modules" as building blocks, which are housed in a standardized drawer system. This approach allows for flexible configuration and expansion, supporting up to 61K bytes of memory and multiple I/O modules. The document also notes power and environmental specifications, as well as the different physical configurations available, such as table-top or rack-mount options.