According to the latest report from Gartner, there were 195,400,000 tablet computers sold in 2013 around the world, which is 68% increased compared with last year. What's more, Android firstly surpassed Apple and became the leading operating system for tablet devices. Android shared 62% percent for the sales, which is about 120,900,000 pieces, while IOS droped to 36%, which is about 70,400,000 pieces. Gartner said that it was maily the low-end and small size tablets boosting the big inc……