Ключевые слова: abstract, analytics, background, book, business, commercial, communication, complex, computer, concept, dairy, designer, development, double, drawing, electronic, email, employee, exposure, goal, hands, icon, information, innovate, intelligence, internet, laptop, letter, mail, man, mobile, multi, office, online, pc, pen, receive, relationship, research, social, spam, stats, studying, symbol, technology, wallpaper, website, working, writing,