Ключевые слова: abstract, advanced, background, basket, bin, black, blue, brake, broken, business, call, calls, cell, cellphone, cells, cellular, communicate, communicates, communication, communications, computer, concept, conference, connect, contact, coverage, cracked, crash, damaged, dated, develop, device, devices, digital, disconnect, disconnected, display, education, electrical, electronic, electronics, equipment, failure, faulty, fix, flat, flip, freedom, full,