www.86dos.org

Anchor text: A ZIP file containing most of the files from 86-DOS 0.75 (1981-04-17<!-- change to internal version 0.75 -->/1981-04-18<!-- date stamp of files in archive -->) to 1.00<!-- version in file header -->/1.10<!-- actual internal version as of 1981-07-21 --> (1981-07-21<!-- date stamp of files in archive -->)

Wikipedia: 86-DOS

Anchor text: Howard's Seattle Computer Products SCP 86-DOS Resource Website

Wikipedia: Timeline of DOS operating systems