What is the fine-grained topic of the following text: Today, these embedded systems are found in cell phones, digital cameras, calculators, microwave ovens, answering machines, home security systems, washing machines, lighting systems, copiers, printers and scanners, alarm systems, automated telling machines, transmission control, cruise control, fuel injection, anti-lock brakes, electronic brake distribution active suspension and many other devices/ gadgets. Only return the topic.
Embedded systems in various devices and gadgets