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<a accesskey="3" href="page.php?w=Processor_%28computing%29&amp;p=2">3.Next</a>
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<p>In <a href="page.php?w=computing">computing</a> and <a href="page.php?w=computer_science">computer science</a>, a <b>processor</b> or <b>processing unit</b> is an electrical component (<a href="page.php?w=Circuit_%28computer_science%29">digital circuit</a>) that performs operations on an external data source, usually <a href="page.php?w=Memory_%28computing%29">memory</a> or some other data stream. The term is frequently used to refer to the <a href="page.php?w=central_processing_unit">central processing unit</a> (CPU), the main processor in a</p><p>
<a accesskey="3" href="page.php?w=Processor_%28computing%29&amp;p=2">3.Next</a>
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