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<a accesskey="3" href="page.php?w=bus_error&amp;p=2">3.Next</a>
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<p>In <a href="page.php?w=computing">computing</a>, a <b>bus error</b> is a <a href="page.php?w=Trap_%28computing%29">fault</a> raised by hardware, notifying an <a href="page.php?w=operating_system">operating system</a> (OS) that a process is trying to access <a href="page.php?w=computer_data_storage">memory</a> that the <a href="page.php?w=Central_processing_unit">CPU</a> cannot physically address: an invalid address for the <a href="page.php?w=address_bus">address bus</a>, hence the name. In modern use on most architectures, these are much rarer</p><p>
<a accesskey="3" href="page.php?w=bus_error&amp;p=2">3.Next</a>
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