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Reference.org
Automatic Digital Network
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<p>The Automatic Digital Network System, known as AUTODIN, is a <a href="/facts/Legacy_system/YvYjMcCz">legacy</a> <a href="/facts/Data_communications/1yAhaANd">data communications</a> service in the <a href="/facts/United_States_Department_of_Defense/dWAvf7e3">United States Department of Defense</a>. AUTODIN originally consisted of numerous AUTODIN Switching Centers (ASCs) located in the United States and in countries such as England and Japan. </p>