With Father's Day right around the corner, some dads out there might be requesting a new Chromebook. Chromebooks, which run Google's Chrome OS, have quietly become quite popular among notebook buyers. As of this writing, Chromebooks are among the top 20 most popular computers available on Amazon, and sales continue to grow steadily. Although the devices got off to a slow start, Google has found a way to attract customers. With that in mind it might be a good time to revisit Chromebooks' operating system, Chrome OS, and talk about key features that make the Chromebook so attractive. While users were uncertain at first about the concept of using a Web-based operating system, Chrome OS morphed into something far more usable and appealing to the average computer user since it was first released in 2009. Not only are computer users more comfortable with accessing cloud applications and storing their data in the cloud, but Google has added a number of features that make it convenient to use Chrome OS productively. This eWEEK slide show will cover the factors that made this platform appealing to notebook PC users.