Around 1.9 million years ago, the human can use fire to cook food and keep warm. They also can converse natural sources into simple tools in order to make life more easily. Those are the first evidences of human’s use of technology. Until now, human’s life has been changed dramatically thanks to the fast development of technology, such as: printing, internet, telephone, etc. This category will collect most famous and useful brand name in technology field with high resolution and quality wallpapers.