epa04662111 A person demonstrates the look-feel of new operating system Windows 10 for Smartphones and at the Microsoft stall at the CeBIT??technology fair in Hanover, Germany, 14 March 2015. The giant CeBIT computer trade fair takes place from 16 to 20 March 2015 with China as this year’s partner country, underlining the Asian powerhouse economy’s growing role in the IT business. IT security and high-speed wireless connections through new 5G-driven mobile devices have emerged as major themes at this year’s CeBIT. EPA/PETER STEFFEN