This episode features APX Data Management System, released in 1982 by APX, originally published in Compute! magazine in Novemeber 1981. It was programmed by Ron & Lynn Marcuse.

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APX Catalog advertisement. Note that it received a full page and a blue ribbon award:

Compute! magazine cover which feature version 1.2 of Data Management System:

Disk

Image of the diskette:

Data Management System in Action

Main menu. Note the Select Option prompt is used throughout the program:

Data Dictionary menu:

Data Dictionary List Index:

Adding a data dictionary (database):

Data Dictionary List. You can list all data dictionaries (databases), or search for one:

Data Dictionary Update:

File Management Menu(s). Note the second image shows the currently OPEN database between the title and menu options:

Selecting a database (open):

File Management Directory Index:

Add Record:

File Management List / Inquiry menu:

Listing records by searching, displaying to screen or printer, and selecting all or some (partial) fields:

Update Record:

Sort:

Error displayed when there is no data set (database) open when invoking a function that requires it:

Files

Files on the diskette:

Contents of DISKNAME.DAT file:

Dump of the DMS.DB file. This file contains a record of all databases on the disk, which includes the database name, description, and fields within:

Dump of the beginning and end of the sample database (PA.DB). This shows each field encoded in plain ASCII:

Manual

Print Output

Single record, all fields:

Single record, partial fields:

All records, all fields:

All records, partial fields:

Inverse ATASCII Episodes, sorted by Title:

Inverse ATASCII Episodes, sorted by Season:

Show Links

• AtariMania: http://www.atarimania.com/utility-atari-400-800-xl-xe-data-management-system_27137.html
• Atari Archives: http://www.atariarchives.org/APX/showinfo.php?cat=20059
• Inverse ATASCII S1 E7 – Weekly Planner: https://inverseatascii.info/2014/12/20/s1e7-apx-weekly-planner/
• Inverse ATASCII S1 E9 – Home Inventory: https://inverseatascii.info/2015/03/24/s1e13-apx-home-inventory/
• Inverse ATASCII S1 E18 – Diskette Librarian: https://inverseatascii.info/2015/06/09/s1e18-apx-diskette-librarian/
• Antic Podcast Interview: https://ataripodcast.libsyn.com/antic-interview-61-ron-and-lynn-marcuse-productivity-applications