Ключевые слова: application, business, cellphone, cellular, checks, communication, concept, connection, contact, data, device, digital, display, e mail, electronic, email, hand, hold, icon, inbox, information, interface, internet, letter, mail, media, message, messaging, mobile, mobility, modern, network, newsletter, online, phone, pointing, reading, receive, screen, showing, sign, smart, smartphone, sms, technology, telephone, touch, touchscreen, wireless,