Technological Era refers to a period of rapid social change brought about by new technologies. Key technologies include mobile phones, television, computers, and transportation apps like Careem and Uber. Mobile phones have evolved dramatically from heavy bricks to today's lightweight devices. Television was initially used mainly for entertainment and news but now also delivers many advertisements. Computers have progressed through five generations, becoming smaller, faster, and more powerful with each. Transportation apps allow convenient on-demand booking of rides.