Chromebooks look like regular laptops, but run an operating system called Chrome OS. It is, confusingly, not related to Android, Google's better-known operating system, at all; ChromeOS is basically a glorified web browser, along with a few niceties like a file browser and some settings that affect the hardware (turning on Wi-Fi, screen brightness, that kind of thing). But ChromeOS is surprisingly capable: there are "web apps" (like, super fancy web pages) that let you do pretty much everything you'd need to do on a low-end laptop. There are great Twitter apps, word processing apps, image editors, chat apps, note-taking apps, games, and all kinds of other stuff. I've used one for awhile, and found it a great portable machine, much more capable than a tablet.