The DEC PDP-11/23+ was a compact minicomputer system, an enhanced variant within the popular PDP-11 family. It utilized a LSI (Large Scale Integration) based CPU, typically the KDJ11-A, and connected components via the Q-Bus architecture. Designed for cost-effective, embedded, and smaller general-purpose applications, it supported operating systems such as RSX-11M, RT-11, and various Unix versions.