Ключевые слова: backup, black, bubble, business, businessman, cartoon, city, communication, concept, connection, data, defense, disk, diskette, equipment, expertise, file, floppy, format, front, hand, human, information, it, knowledge, machinery, man, message, modern, networking, office, person, precautions, privacy, protect, protection, protective, retro, safety, secrecy, security, skill, speech, suit, tech, technology, text, tie, white, word,