Diagnostic

This document contains a series of Diagnostic Engineering Change Orders (ECOs) for Digital Equipment Corporation's PDP-8 family of computer systems. The records document updates, patches, and version control for diagnostic software ranging from 1970 to 1981. Each page provides details on the component part, the purpose of the ECO (e.g., Change, Patch, New), the original product date, and the specific corrections or enhancements made to the diagnostic programs.