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Gemini Guidance Computer
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<p>The Gemini Guidance Computer (sometimes Gemini Spacecraft On-Board Computer, OBC) was a <a href="/facts/Digital_computer/SQe1aK05">digital</a>, <a href="/facts/Serial_computer/CaQGzRth">serial computer</a> designed for <a href="/facts/Project_Gemini/7PYE3AV4">Project Gemini</a>, America's second human spaceflight project. The computer, which facilitated the control of mission maneuvers, was designed by the <a href="/facts/IBM_Federal_Systems_Division/UHlI17tz">IBM Federal Systems Division</a>. </p>