(1) The document discusses various applications of information technology across different sectors including education, healthcare, finance, travel, government, manufacturing, publishing, and science. (2) Some key IT applications mentioned are online banking, distance learning, telemedicine, car navigation systems using GPS, computer-aided manufacturing, digital newspapers and magazines, and using simulations and neural networks in science. (3) Across many sectors, IT is being used to improve productivity, enhance learning and teaching, provide remote access to services, and assist with data collection and analysis.