Ver 1.00. The Execution disk is for the practical use, the Storage disk is the backup, and the Overview disk displays the demonstration/manual.
Mouse is disabled by default. To enable, push STOP to open the desk accessory menu, choose System Setting at the top left using cursor keys then push RETURN. The System Setting dialogue opens so move the pointer to the Mouse radio button at the bottom left using GRAPH and cursor keys, push GRAPH+SELECT to leftclick, then push RETURN.
This version can be installed to a hard disk and lacks screensaver. Later it could be upgraded to ver 1.21 by ASCII for 3000 JPY if the purchaser had submitted the bundled user registration card.
Two variants exist. One displays Dec 5 1990 in the title, other displays Mar 15 1991.
Mouse is enabled by default. Hard disk installable. Can handle PCM unlike 1.00/1.20. Ver 1.00 could be upgraded to this version for 3000 JPY.
Description at Tagoo https://msx.jpn.org/tagoo/s_check.cgi?LINE=1698
This ver 1.20 integrated into Panasonic FS-A1GT is started by booting FS-A1GT with its firmware switched on. Differences from 1.21 include the inability to handle PCM.
Mouse is enabled by default. FS-A1GT System Disk 3 is occasionally required by applications. Ver 1.00/1.21 Overview disk equivalent is unprovided but the almost identical demo called GT Book can be started from Disk 3. The kanji font rom incorporated in FS-A1GT is not equal to the other versions but it lacks 12x12 pixels JIS level 2 kanji fonts, and is accessed via Panasonic mapper.
Files can be extracted from FS-A1GT then run on FS-A1ST either with or without the ver 1.00/1.21 cartridge, or even on FS-A1GT with its firmware switched off.