English Software Company FORTH#
Seems to be based an FIG-FORTH, but with some unique "Words". Requires an Atari 400/800 OS (non-XL) or Oldrunner Disk. In The Netherlands EsForth was released by Aackosoft, who distributed many titles from English Software. This cassette version runs also on XL/XE models.
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PDF ManualJPEG scans of the ES Forth manual