Ключевые слова: app, background, book, business, college, communication, computer, concept, creative, design, digital, education, elearning, flat, globe, icon, illustration, information, internet, knowledge, laptop, learning, link, media, network, object, online, school, science, search, service, set, sign, social, student, study, symbol, tablet, teaching, technology, tutorial, university, web, website, wireless,