Ключевые слова: black, button, buy, commercial, communication, computer, concept, conceptual, data, enter, equipment, glass, help, icon, information, internet, key, keyboard, keypad, laptop, look, magnify, magnifying, market, modern, network, notebook, pc, press, question, research, retail, sale, search, security, service, support, symbol, system, technology, text, tool, web, website,