Ключевые слова: abstract, accessibility, backgrounds, biometrics, blue, business, circuit, closeup, code, coding, communications, computer, concepts, confidential, connection, contemplation, cyberspace, data, digital, discovery, electronics, equipment, eye, future, futuristic, human, identity, image, industry, iris, laser, light, lighting, medium, montage, number, password, people, protection, retina, scan, scanner, science, security, sensor, surveillance, system, technology, watching,