Ключевые слова: abstract, background, black, business, button, call, cell, cellphone, cellular, communication, computer, concept, connection, contact, design, device, digital, display, electronic, element, equipment, flat, gadget, graphic, icon, illustration, information, internet, isolated, mobile, modern, network, object, phone, science, screen, set, shape, sign, smart, smartphone, symbol, tablet, technology, telephone, touch, web, white, wireless,