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Not to mention they forgot one: Apollo Domain/OS: http://www.typewritten.org/Media/Images/apollo-dm.gif http://www.typewritten.org/Media/Images/apollo-dm.gif (1

Not to mention they forgot one: Apollo Domain/OS: http://www.typewritten.org/Media/Images/apollo-dm.gif http://www.typewritten.org/Media/Images/apollo-dm.gif (1981)