Ключевые слова: app, background, book, browsing, business, cellphone, communication, concept, connection, design, digital, distance, education, gadget, home, icon, internet, knowledge, learn, lecture, library, mobile, modern, network, note, notebook, office, online, paper, pencil, people, person, phone, school, screen, set, smart, smartphone, social, space, student, study, table, technology, touch, university, using, video, wireless, young,