Ключевые слова: background, backgrounds, bandwidth, black, blue, cable, cables, communication, computer, concept, connection, connector, cord, data, digital, earphones, electric, electricity, electronics, energy, equipment, fiber, ftth, futuristic, green, headphones, industry, internet, isolated, light, line, metal, modern, network, object, optic, optics, phone, plug, power, signal, silver, socket, technology, telegraph, telephone, usb, white, wire, wires,