Artifact Details Title "DIGITAL" label DIGITAL-1-25-M-Rim MAINDEC 2 checkerboard Sense SW 3,4,5,6 up Catalog Number 102652727 Type Software Description Cover of original tape tray read as follows: PDP-1 Working Tapes Box 1 MAINDEC 1-32 System Requirements DEC PDP-1 Format Paper tape Series Title PDP-1 / Software / Paper Tape Lot Number X3602.2006