Samsung was founded in 1938 and is now the largest information technology company measured by revenues. In 2012, Samsung became the world's largest mobile phone maker by unit sales, overtaking Nokia. Samsung has assembly plants and sales networks in 61 countries. Some key products include smartphones, tablets, televisions, cameras, and PCs. In India, Samsung is the leading smartphone brand and faces competition from companies like Nokia, Micromax, and Lenovo in various product categories. Samsung aims to launch new products like the Galaxy S4 smartphone and expand its market share globally and in India.