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<p>and <a href="page.php?w=Windows">Windows</a>.  These special files allow an application program to interact with a device by using its device driver via standard <a href="page.php?w=input%2Foutput">input/output</a> <a href="page.php?w=system_call">system call</a>s. Using standard system calls simplifies many programming tasks, and leads to consistent user-space I/O mechanisms regardless of device features and functions.</p>

<p><big>Overview</big></p>
<p>Device files usually provide simple interfaces to standard devices (such as printers and serial ports),</p><p>
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