Data Products Core Memories Inc Core Memory Plane Board 717510-2D

Data Products core memories inc magnetic core memory assembly board, ASSY 717510-2D, P/N 401-50326-00, serial number HA 375. Configuration is 32K x 18 (32,768 words by 18 bits). Assembled in Hong Kong. Large-format green PCB with edge connector fingers visible along multiple board edges, consistent with backplane-based minicomputer memory expansion. The 32K x 18 organization is characteristic of PDP-11 series and compatible minicomputer memory systems from the mid to late 1970s, where 18-bit width accommodated 16 data bits plus two parity bits. Data Products Corporation was an established US OEM supplier of core memory assemblies during the transition era between ferrite core and solid-state semiconductor memory. The cores themselves are covered by a protective overlay board as visible in photos. Condition is as-removed; no testing has been performed and no claims are made regarding operational status. This item is of significant interest to vintage computing collectors, computer history researchers, and institutions preserving hardware from the minicomputer era. A rare survivor of a technology that represented the dominant form of computer main memory from the mid-1950s through the mid-1970s.

Stock # 0226-561