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<p>applications in the <a href="page.php?w=IBM_System%2F4_Pi">IBM System/4 Pi AP-101</a> (used in the <a href="page.php?w=Space_Shuttle">Space Shuttle</a> until an upgrade in early 1990s, and the <a href="page.php?w=B-52">B-52</a> and <a href="page.php?w=B-1B">B-1B</a> bombers).</p>

<p>An example of the scale, economics, and technology of core memory in the 1960s was the 256K 36-bit word (1.2&nbsp;<a href="page.php?w=MiB">MiB</a>) core memory unit installed on the <a href="page.php?w=PDP-6">PDP-6</a> at the <a href="page.php?w=MIT_Computer_Science_and_Artificial_Intelligence_Laboratory">MIT Artificial Intelligence Laboratory</a></p><p>
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