Ключевые слова: 4g, abstract, access, acronym, background, cell, cellphone, cellular, communication, communicator, compatibility, compatible, computer, concept, conceptual, data, design, digital, electronic, fast, frequency, glossy, gold, gsm, information, internet, messaging, mms, mobile, network, organizer, palmtop, pda, phone, pocket, screen, shiny, smart, smartphone, sms, spectrum, standard, tech, technology, telecommunications, wifi, wireless, yellow,