CP/M-86 Operating System (Emulation) (archive.org)
description
The Internet Archive page uses DOSBox to emulate CP/M-86, first released in 1982. Type “dir” to show a directory listing of files; type “help” to enter the help system.
Elias was a man subject to like passions as we are, and he prayed earnestly that it might not rain: and it rained not on the earth by the space of three years and six months.James 5:17 KJV