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<p>processing units). Parallelism executes tasks independently on multiple CPU cores. Concurrency allows for multiple threads of control at the program level, which can use parallelism or time-slicing to perform these tasks. Programs may exhibit parallelism only, concurrency only, both parallelism and concurrency, neither.<br/>
* <a href="page.php?w=Multithreading_%28computer_architecture%29">Multi-threading</a> and <a href="page.php?w=Multiprocessing">multi-processing</a> (shared system resources)<br/>
* <a href="page.php?w=Synchronization">Synchronization</a></p><p>
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