Wireless networking
RFID
He uses Lightwave RGB lasers
Optical signals (usually on the infrared band) optical s ignals generally mean visible light... so it mainly uses visible light.
jedis, veterinarians,
Picosecond lasers have a variety of uses. Some of the most common uses for picosecond lasers are in the medical field in such procedures as laser eye surgery and tattoo removal.
its uses are the gemstone and useful for lasers
Most of these networks use radio waves for their transmission medium, but some use infrared light waves
wireless local area network: a local area network that uses high frequency radio signals to transmit and receive data over distances of a few hundred feet; uses ethernet protocol
Input devices that use infrared technology include remote controls, infrared touch screens, and certain types of motion sensors. These devices utilize infrared light to detect user interactions, such as button presses or gestures, by measuring the reflection or interruption of infrared signals. Additionally, infrared sensors are commonly found in devices like barcode scanners and some types of keyboards and mice for wireless communication.
Infrared can be used to communicate information by encoding data onto infrared light waves and transmitting them wirelessly between devices. The devices typically have infrared transmitters and receivers that can emit and detect the modulated infrared signals, allowing for data transfer such as remote control commands, data sharing, or proximity detection.
DSL is carried over a phone line. Yet it caries digital signals. the telephone company has to limit the bandwidth of the analog voice on the lines. So DSL is able to use the unused portion of the bandwidth to transmit digital data. hope that helps -------------------------------------------------------------------------------------------------------- According to Cisco : Network devices link together using a variety of connections: * Copper cabling - Uses electrical signals to transmit data between devices * Fiber-optic cabling - Uses glass or plastic wire, also called fiber, to carry information as light pulses * Wireless connection - Uses radio signals, infrared technology (laser), or satellite transmissions. so your answer would be electrical signals.
No, infrared port uses IR radiation and bluetooth uses radio frequency radiation.