Ключевые слова: aged, alphabet, ancient, antiquated, antique, busy, call, code, communicate, communication, connecting, connection, conversation, electronics, global, history, isolated, key, machine, message, morse, morse code, number, object, obsolete, office, old, oxidized, phone, photo, retro, signal, sos, technology, telecommunications, telegram, telegraph, telegraphic, telephone, transceiver, transmit, used, vintage, wave, white,