| DEC PDP-7 soft. |  .IODEC Revision No. 7-29 | 1967 | DECUS Digital Equipment Computer Users' Society |
| 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-8 soft. | A Programmed Associative Multichannel Analyser No. 8-65 | 1967 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | A Pseudo Random Number Generator No. 5-25 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | Additions to Symbolic Tape Format Generator No. 5-50 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | AIphanumeric Input No. 5-42 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-8 soft. | ALBIN No. 8-47 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-8 soft. | ALP Program No. 8-68 | 1967 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-6 soft. | ALPHAS No. 6-1 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | Analysis of Variance No. 5-9 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-8 soft. | Analysis of Variance No. 8-9 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-4 soft. | Automonitor Program No. 4-1 | 1964 | 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-5 soft. | BCD to Binary + Binary to BCD Conversion Subroutine No. 5-35 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | BCD to Binary Conversion of 3-Digit Numbers No. 5-6 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-8 soft. | BCD to Binary Conversion Subroutines No. 8-29 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-8 soft. | Bell Star No. 6-8 | 1967 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | Bin Tape Disassembler No. 5-18 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-4 soft. | Bivariate Curve Fit No. 4-7 | 1964 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-4 soft. | BOOLEPAC No. 4-12 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | BPAK No. 5-1.1 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | Breakpoint No. 5-41 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | BRL No. 5-3 | 1964 | 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-5 soft. | CBL No. 5-26 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-4 soft. | CCS Operator System No. 4-14 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-4 soft. | CCS Scope Editor No. 4-15 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-7 soft. | CGC Function No. 7-6 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | Character Packing + Unpacking Routines No. 5-51 | 1966 | DECUS Digital Equipment Computer Users' Society |
| LINC soft. | CLOCK 1 No. L-2 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-1 soft. | Color Debugger No. 90 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-5 soft. | COPCAT No. 5-53 | 1966 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-7 soft. | CREASE No. 7-17 | 1967 | 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-7 soft. | CUS - Console Utility System No. 7-3 | 1965 | DECUS Digital Equipment Computer Users' Society |
| DEC PDP-6 soft. | DATE No. 6-10 | 1967 | DECUS Digital Equipment Computer Users' Society |
