| DEC PDP-1 soft. |  28-Bit Floating Point Package No. 76 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | 340 Assembly Language No. 83 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | BBN 121a No. 63 | 1963 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | BBN-1 FRAP | 1962 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | BBN-23 No. 64 | 1963 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Buffered DECtape Read and Write Routines No. 87 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | CalComp Plotter Sooftware No. 81 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Color Debugger No. 90 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Cube Display + Matchbox Display No. 89 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | DDT DEC Debugging Tape | 1964 | DEC Digital Equipment Corp. |
| DEC PDP-1 soft. | DEXTER | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | DSL Sort Routines No. 77 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | EXPCH No. 79 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | FORTRAN Ver.3 No. 82.3 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | FORTRAN No. 82 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | LISP No. 85 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | M .1. T. Floating Point Arithmetic Package No. 84 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | MADCAP | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Modified Expensive Typewriter No. 7A | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | MRR No. 66 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Munching Squares | 1962 | Unknown |
| DEC PDP-1 soft. | Precision Hypotenuse No. 86 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | SEETAPE No. 75 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | SIN-COS No. 67 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | SQRT No. 68 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Tape 52 No. 78 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Tape Library Program No. 74 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Typewriter Time Test No. 88 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | UAC-14 No. 65 | 1963 | DECUS Digital Equipment Computer Users' Society |
