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<p>required for any necessary asynchronous time-dependent hardware interface.</p>

<p><big>Purpose</big></p>
<p>The main purpose of device drivers is to provide <a href="page.php?w=hardware_abstraction">hardware abstraction</a> by acting as a translator between a hardware device and the applications or <a href="page.php?w=operating_system">operating system</a>s that use it. Programmers can write higher-level application code independently of whatever specific hardware the end-user is using.</p>

<p>For example, a high-level application for interacting with</p><p>
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