I’m sure a better question (certainly one far easier to answer) is ‘what pc tablets don’t use Android?’ Android is by far the most typical OS for pc tablets at time of writing. You will find others, of course, but Windows 8 is probably the closest when it comes to market share right now.
Apple iOS, developed for the iPad, iPhone and iPod Touch and can only run on Apple products. Windows 8 remains to be testing the water, but the latest version has received a mixed-to-good reception from critics and consumers alike, so we are able to expect to view more of that. Windows 8 could be licensed for use on other tablet pc’s, but, as I said, it’s still quite new at the moment.
Elsewhere, HP have their own platform, webOS. According to Dan Grabham at ‘TechRadar.com’,
“webOS started life in the 2009 Palm Pre smartphone and, HP bought Palm in 2010 and immediately said it would be using webOS in other devices. The HP TouchPad is the first fruit of this in tablet form – webOS 3.0. webOS uses touch in a similar way to the iPad, but application windows run in separate so-called cards – that means you can flick between different app screens – perhaps a webpage and an open email – all of which are displayed on ‘cards’”.
The only other common tablet OS is the Blackberry OS, another somewhat lesser known system. About the Blackberry OS, Grabnet says,
The Playbook’s bezel packs hidden secrets. Swiping your finger from the edge of the device, across the bezel and onto the screen will bring up all manner of options and features, depending on which side you choose to swipe from and which app you’re using”.
However, out of all of those, Android could be the most commonly used and probably the most familiar to the current customer.
To better answer the original question, I did search for the comprehensive list of Android tablets online; personally, I couldn’t locate a definitive list and, after searching for some time, I also revealed that numerous of the web pages which claim to possess a great list are mournfully lacking. Actually, the overwhelming majority of them basically weren’t around anymore. I’m sure someone around has an exact figure, but I don’t.
The situation is that Android is accredited to so many potential suppliers that there most likely are not a method of knowing for sure.
From Wikipedia: “Android has an active community of developers and enthusiasts who use the Android source code to develop and distribute their own modified versions of the operating system. These community-developed releases often bring new features and updates to devices faster than through the official manufacturer/carrier channels, albeit without as extensive testing or quality assurance”.
Basically, as hard as it can be to track the official statistics, it’s virtually impracticable to trace every one of the unofficial ones. Simply put, Android is everywhere.