This is a black and white image of text instructions for using the DECUS program library. There are five programs listed as "DECUS No. 1", "DECUS No. 2", "DECUS No. 3", "DECUS No. 4", and "DECUS No. 5". Each DECUS program lists its purpose and design. DECUS No. 1 and 2 programs are character display and punch display decimal programs (FRAP). DECUS No. 3 is a display line program (FRAP & DECAL). DECUS No. 4 is a DEC-2 MAC subroutine program and MIT-3 (MACRO) assembly program. Written on verso side in black pen is "B.22" and "2" with the number 2 circled.
Publicity photograph; Identification photograph
Digital Equipment Corporation (DEC); PDP-1 (Computer)