DECUS CatalogAddendum Jun66

This document is "DECUS Program Library Addendum No. 1, Abstracts of Programs," published in June 1966 by the Digital Equipment Computer Users Society (DECUS).

It serves as a supplement to the main DECUS Program Library, providing summaries (abstracts) of new or updated software programs for Digital Equipment Corporation's (DEC) PDP series computers, specifically PDP-1, PDP-4, PDP-5, PDP-7, and PDP-8 models.

The addendum is structured into several sections:

1. Category Index: Organizes programs by function, such as Executive Routines, Assemblers, and Compilers; Editors; Debuggers; Punch and Loaders; Duplicators and Verifiers; Arithmetic Routines (including elementary functions, numerical input/output); Special Functions; Displays; Test Manipulation, Symbol Manipulation, and Sorts; Probability and Statistics, and Curve Fittings; Scientific and Engineering Applications; Hardware Control; Games and Demonstrators; Linear Programming, Operations Research, Business Applications; Desk Calculators; Maintenance; and Miscellaneous utilities.
2. Numerical Index: Provides a cross-reference listing programs by their unique DECUS number, title, and corresponding page number for detailed abstracts. This index is specific to PDP-1, PDP-4/PDP-7, and PDP-5/PDP-8 programs.
3. Abstracts of Programs: Detailed descriptions of selected programs that are part of this addendum, identified as "Addendum No. 1" entries in the numerical index. These abstracts cover a range of software, including:
   • FORTRAN compilers (e.g., FORTRAN for the PDP-1 Version 3)
   • Precision mathematical subroutines (e.g., Hypotenuse/Square Root)
   • Data handling routines (e.g., Buffered DECtape Read and Write)
   • Simulation programs (e.g., Foxboro Interpretive Simulation Program for PDP-8 on PDP-4)
   • Output utilities (e.g., Decimal Integer Punch Routine, Punch Output Package)
   • Documentation (e.g., Preliminary Programming Manual for the 340 Display)
   • System utilities (e.g., Binary Input-Output Package, On-Line Debugging Program OPAK, ERC Boot, PAL III Modifications, BCD to Binary Conversion, Plotting programs, Program Relocation and Packing, Tape to Memory Comparator, Memory Halt, Decimal Type-In/Output).

The document acts as a catalog and reference guide for the expanding software available to DECUS members in mid-1966, highlighting new functionalities and improvements for their PDP systems.