Changes
'''On File (2025)''' Database Management System will be released in summer 2025 and will include the options to Group and to Invert the records, to perform slideshow, to index the database, as well as '''On File Register''', a RAM-disk based register book. The latter will provide capacity for a few thousands of single-field records. Hence, the user can set up e.g. a Register of Earthquakes (date, time, location, magnitude, depth, duration) using On File Register, while keeping detailed records of specific earthquakes (e.g. > 6 R) using On File Database. On File 2025 requires RAM expansion to run and has a resume option in order to access the RAM-disk contents upon restart. On File database (2024/2025) is disk-based, thus all the records are stored in the disk drive as stand-alone files. On the other hand, On File Register uses a single file to store the records in the RAM-disk. For large register books which contain more than 64 records, a 16 KB "cache" memory is implemented in order to be able to move back and forth while reading the records. The original 2025 disk will contain the stand-alone application files ONFILE.COM and REGISTER.COM, the screen saver ONFILE.CHN, some demo records (*.REC), a few application files (ONFILE.00?), a few master records (*.002) and a demo of the register book (REGISTER.DAT).
Notice, that in the 2025 version, in order to maximize the free directory entries and to overcome the Compiler and Editor Overflow, a big part of the On File source code (ONFILE.COM) has been '''encapsulated in the source code''' of the Register Book (REGISTER.COM) and is accessed upon user request via boolean expressions that are temporarily stored in the RAM-disk.
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