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Like many computer users, I enjoy communicating with remote CP/M and bulletin board systems. And like many I've spent much of my time hearing busy signals and redialing. MEX is a public domain modem executive program. With it, one can tell the computer to keep dialing a number until it connected. The computer is supposed to make life simpler by eliminating the need for human intervention in mundane, repetitive tasks. The modem minder is a device which monitors the modem, and informs the user when a connection to a remote host has been made. The author explains how it works.