Do you remember your first mobile phone?

It may have been an old-school flip phone or one of those that had the slide-out QWERTY keyboard.

The world’s first modern smartphone was launched in 1994 in the United States and was called IBM Simon. It is estimated that around 30,000 people owned a smartphone in 1994. Now about half of the world’s population owns a smartphone.

Your smartphone probably isn’t the only device you have charging at your home or office. Mobile devices now encompass tablets, e-readers, and wearables such as smart watches. Mobile has quickly outpaced desktop as the primary source of web traffic worldwide. Mobile devices generate nearly 50% of global website traffic, with retail, media, business, and finance having the highest growth rate.