Ключевые слова: abstract, advertising, air, alarm, appliances, automatic, background, business, camera, chart, coffee, comfort, composition, computer, condition, control, decorative, design, devices, dishwasher, elements, energy, fan, flat, heating, home, icons, illustration, intelligent, internet, light, machine, mobile, phone, poster, refrigerator, remote, schema, security, smart, symbols, tablet, things, watch,