The Internet was operational immediately without any further setup. Using Firefox, I was able to access all my favorite websites. Going to youtube.com, the Flash plug-in installation was required, which was successfully completed in a few simple steps. Along the way I plugged in a USB mouse which was immediately functional without even asking a question.
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In summary, I have been pleasantly surprised by the responsiveness of this machine and the ease of set-up, enabling me to use it in a productive fashion right away. I will expand on this initial review shortly.