Artifact Details Title MAINDEC 2 Memory Checkerboard Catalog Number 102650492 Type Document Date 1963 Publisher Digital Equipment Corporation (DEC) Identifying Numbers Other number F-39-2 Extent 20 p. Dimensions 11 x 8 5/8 in. Category Manual Collection Title PDP-1 Computer Materials Series Title Manuals Lot Number X3602.2006 DEC.pdp_1.1963.102650492.pdf