l" class="active"><strong aria-hidden="true">3.2.</strong> Writing Cross Platform Abstractions</a></li><li><a href="3_3_the_cpu_and_the_os.html"><strong aria-hidden="true">3.3.</strong> The CPU and the OS</a></li></ol></li><li><a href="4_interrupts_firmware_io.html"><strong aria-hidden="true">4.</strong> Interrupts, Firmware and I/O</a></li><li><a href="5_strategies_for_handling_io.html"><strong aria-hidden="true">5.</strong> Strategies for handling I/O</a></li><li><a href="6_epoll_kqueue_iocp.html"><strong