PDP-10, MUD Wiki
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File:LCM - DEC PDP-10 - 03.jpg - Wikimedia Commons
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File:DEC PDP-10 (decstation-10) mainframe computer system at Living Computer Museum (cropped and edited).jpg - Wikimedia Commons
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Phil's PDP10 Miscellany Page
PDP-11/70 - Computer History Wiki
Emulating your very own DECSYSTEM-10 (PDP-10)
PDP-10